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CategoryAll Exploit / PoC 72 Vulnerability 68 AI safety & security 23 Research 22 Industry 20 Threat actor 20 Advisory 17 Malware 15 AI research 9 Tools 8 Data breach 7 AI industry 6 AI tools & infra 4 Phishing & fraud 4

SeverityAll critical 44 high 116 medium 49 low 9 info 86

Linux Detection Engineering - Local Privilege Escalation

Elastic details a layered detection framework for Linux local privilege escalation, covering 2026's copy-on-write bug wave and LLM-assisted discovery.

Elastic Security Labs describes how most Linux local privilege escalations share a common host flow — an unprivileged process launched from a writable path becoming root — and proposes layered detections combining general outcome-based rules with per-technique rules in Elastic Defend and Auditd. It tracks 13 recent LPE disclosures, seven of which share a copy-on-write/zero-copy bug class, including Copy Fail, DirtyFrag, Fragnesia, DirtyDecrypt, DirtyClone, pedit COW, and RefluXFS. Qualys attributes RefluXFS to an LLM-assisted research effort with Anthropic using Claude Mythos Preview, and another bug is credited to an LLM-assisted workflow. Detection and endpoint rules are published in Elastic's detection-rules and protections-artifacts repositories.

Elastic Security LabsSep 11, 00:00 UTC · 5d agoResearch

Redtail Payload Analysis [Guest Diary], (Wed, Sep 9th)

SANS guest analyst detonated a RedTail Linux sample from a DShield honeypot, finding process masquerading as php-fpm, monitoring-kill behavior, and a TCP listener.

A DShield honeypot captured multi-architecture RedTail Linux executables (ARM, ARM64, i686, RISC-V, x86-64) deployed via shell scripts. Dynamic analysis of the UPX-packed, statically linked x86-64 sample (SHA-256 63be5f38...d35e) in an isolated Ubuntu 24.04 VM on Proxmox showed it renamed its process via prctl(PR_SET_NAME), killed a filesystem-monitoring process, and opened a TCP listening socket while surviving processes posed as php-fpm or PostgreSQL-like workers. Differential memory images pre- and post-execution were captured from the hypervisor for forensics.

SANS Internet Storm CenterSep 10, 12:58 UTC · 5d agoMalware in the wild 2 sources1

The Machine With Many Faces: Post-Exploitation Identity Misuse in SPIFFE/SPIRE

Unit 42 demonstrates that root access on a Kubernetes node lets attackers spoof SPIFFE/SPIRE attestation and harvest co-located workloads' SVIDs.

Palo Alto Networks Unit 42 describes post-exploitation techniques in which an attacker with root on a compromised Kubernetes node spoofs Linux cgroup metadata used by the SPIRE agent during workload attestation, tricking it into issuing a co-located workload's SPIFFE Verifiable Identity Document to an attacker-controlled process. The research shows the core trust assumption of machine-identity systems—that the node is trusted—collapses once root is obtained, exposing all cryptographic identities scoped to that node. Unit 42 released an open-source tool, Spooffe, for defenders to test identity exposure, and notes the technique has not been observed exploited in the wild.

Palo Alto Unit 42Sep 10, 10:00 UTC · 6d agoResearch1

AD Rights Management Service (Part 1): Architecture, Deprecation, and Reconnaissance

Huntress maps AD RMS architecture and recon paths, setting up an offline key-extraction attack against its unrotatable 255-year root key.

Huntress's multi-part research examines Active Directory Rights Management Services, Microsoft's enterprise DRM role that still ships in Windows Server 2025 despite migration guidance favoring Azure Information Protection. Part 1 covers the trust model and how an ordinary domain account can locate RMS clusters and read rights-policy templates. Part 2 will detail four independent paths for extracting the Server Licensor Certificate (SLC) private key via service-group membership and the configuration database, enabling fully offline decryption of protected documents. The SLC certificate is valid from 2002 to 2258 and has no key-rotation mechanism, so a stolen key decrypts protected content indefinitely.

HuntressSep 8, 04:00 UTC · 8d agoResearch1

New cPanel Flaw Lets a Hosting Account With Mail Privileges Run Code as Root

cPanel patched CVE-2026-67401, an SQL injection in EmailTrack letting an account with mail privileges run code as root on the server.

cPanel released an advisory on September 8 for CVE-2026-67401, an SQL injection in EmailTrack that allows an authenticated account holder with mail-related privileges to create files and execute code as root. All supported cPanel and WHM release lines (11.110, 11.134, 11.136, 11.138 and WP Squared 11.138.1.9) are affected, with fixed builds published for each. No public exploit or exploitation has been reported and the flaw is not yet in CISA's Known Exploited Vulnerabilities catalog. The advisory carries no CVSS score, and the CVE record had not been published as of September 9.

The Hacker NewsSep 9, 08:19 UTC · 7d agoVulnerability CVE-2026-67401

Two Unitree G1 EDU Humanoid Robot Flaws Enable Root RCE, One Starts Over Bluetooth

Researcher disclosed two root RCE chains in Unitree G1 EDU robots (CVE-2026-76639, CVE-2026-76640), one reachable via unpaired Bluetooth, with no confirmed fixed firmware.

Security researcher Olivier Laflamme disclosed two independent root remote code execution chains in the Unitree G1 EDU robot: CVE-2026-76639, a network-adjacent path through chat_go and bashrunner, and CVE-2026-76640, a Bluetooth Low Energy path that ends with a 1,050-byte buffer overflow in btgatt-server giving root on the Locomotion PC. The BLE chain also exploits a cloud authorization gap that let any valid Unitree account recover another robot's AES key, then forces the robot onto an attacker hotspot via wpa_connect.sh heredoc injection. Unitree patched the cloud ownership check in July 2026, but no confirmed fixed firmware release addresses the BLE issues; the PoC was limited to two robots in one room and no in-the-wild exploitation is reported.

The Hacker NewsSep 2, 11:06 UTC · 14d agoVulnerability CVE-2026-76639 CVE-2026-76640

Parallels Desktop Vulnerability Lets Non-Admin Mac Users Execute Code as Root

JFrog researchers disclosed CVE-2026-90894, a critical Parallels Desktop local privilege escalation letting non-admin Mac users execute code as root; fixed in 27.0.0.

JFrog researchers found that Parallels Desktop's privileged prl_disp_service daemon on macOS accepts unsigned local clients through a world-writable socket and allows argument injection into a tar command during appliance installation. Injecting the --use-compress-program option makes tar execute an attacker-controlled program as root, and a one-line proof of concept yielded a root shell without needing a running virtual machine. The flaw, dubbed ParaShells, was confirmed in Parallels Desktop 26.4.0 build 57513 on Apple Silicon and is fixed in version 27.0.0. No exploitation in the wild has been reported; administrators should inventory and upgrade affected installations and restrict local account access.

Cyber Security News09:24 UTC · 2h agoVulnerability CVE-2026-90894

cPanel LiteSpeed Web Server Vulnerability Allows Shared Server Users to Gain Root-Level Access

Critical LiteSpeed Enterprise flaw fixed in 6.3.7 lets low-privilege shared-hosting users escalate to root and bypass CageFS.

cPanel issued an urgent advisory for a critical privilege escalation in LiteSpeed Web Server Enterprise versions before 6.3.7, allowing a low-privilege shared-hosting account to gain root-level server control and bypass tenant isolation controls including CloudLinux CageFS. Root access would let attackers access other hosted sites, steal databases and credentials, deploy phishing pages, and install backdoors. Administrators are urged to upgrade to 6.3.7 immediately via lsup.sh and to review privileged account activity, cron jobs, SSH keys, and system binaries; no CVE identifier was published.

Cyber Security NewsSep 15, 13:52 UTC · 21h agoVulnerability

Palo Alto PAN-OS Buffer Overflow Lets Attackers Execute Arbitrary Code as Root

Palo Alto Networks fixed CVE-2026-0310, a CVSS 9.2 unauthenticated PAN-OS buffer overflow enabling root code execution on PA-Series firewalls.

Palo Alto Networks published an advisory on September 9, 2026 for CVE-2026-0310, a CWE-787 out-of-bounds write in PAN-OS XML processing with a CVSS v4.0 base score of 9.2, affecting the management and dataplane interfaces. Unauthenticated attackers could execute arbitrary code as root on PA-Series hardware firewalls, while VM-Series faces denial-of-service impact and Prisma Access and Cloud NGFW have reduced, authenticated exposure. Affected releases include PAN-OS 10.2, 11.1, 11.2, 12.1, and 12.2 before fixed maintenance releases such as 12.2.3, 12.1.4-h10, 11.2.13-h2, 11.1.16-h2, and 10.2.18-h10; no workaround is available. Palo Alto is not aware of malicious exploitation but classifies remediation urgency as highest.

GBHackersupdated Sep 10, 12:10 UTC · 5d agofirst Sep 10, 11:39 UTC · 5d agoVulnerability 3 sources CVE-2026-0310

Critical ArangoDB Bugs Expose Entire Databases and Enable Remote Code Execution as Root

Two critical ArangoDB flaws (CVSS 9.8/9.9) allow unauthenticated API access and root-level code execution; fixed in 3.12.11.

Remedio researchers reported two critical ArangoDB flaws on August 23, 2026: an authentication bypass via URL-encoded underscores (%5f) in path parsing (GHSA-rrgq-978q-36mq, CVSS 9.8) and a task-execution flaw where a client-controlled isSystem flag lets JavaScript run in the internal context (GHSA-rvhw-4hpw-9vrx, CVSS 9.9). Chained, they allow unauthenticated database access, theft of root password hashes, and root-level code execution when arangod runs as root, such as in the official container image. Patches shipped August 31 in ArangoDB 3.12.11, with GitHub Security Advisories published September 6; CVE identifiers were pending at disclosure time.

GBHackersupdated Sep 9, 13:50 UTC · 6d agofirst Sep 9, 12:28 UTC · 6d agoVulnerability 2 sources1

I've factored the RSA keys of a Certificate Authority from the 90s

Security researcher factored two 512-bit RSA root CA keys from defunct 1990s certificate authority E-Certify using CADO-NFS on a desktop in roughly 30 hours each.

A researcher extracted legacy root certificates from archived Netscape and Internet Explorer installers, identifying two 512-bit RSA roots shipped with Netscape 4.51 in 1999 by the defunct Canadian CA E-Certify. Using CADO-NFS on a Ryzen 9 5950X desktop, the keys were factored in 32 and 29 hours respectively, allowing private key reconstruction. The work comes shortly after RSA-260 (862-bit) was factored, the largest known factorization to date. The researcher also built a legacy TLS server and published keys and tools on GitHub.

Hacker News · securitySep 8, 01:16 UTC · 8d agoResearch HN 411↑ · 86 comments

BGP Hijack Delivers Malicious Virtualizor Update That Establishes Persistent Root Access

Attackers used a BGP hijack to divert Softaculous traffic and push a malicious Virtualizor update granting root persistence on some hypervisors.

Virtualizor reported that a BGP hijack between August 28 20:57 UTC and August 30 06:10 UTC diverted Softaculous update traffic to an attacker-operated server holding a valid Let's Encrypt certificate. Installations checking for updates during the window could receive a malicious package that added an attacker SSH key to root, created a proxyuser account, and installed a Java payload persisted via a systemd service. Hosting provider AlbaHost confirmed 5 of its 34 Virtualizor hypervisors were root-compromised. Virtualizor shipped Patch 9 with a Security Analyzer on September 1, but cryptographic package signing remains future work.

The Hacker NewsSep 2, 13:12 UTC · 13d agoExploit / PoC in the wild

cPanel EmailTrack SQL Injection Flaw Lets Attackers Execute Code as Root

cPanel disclosed CVE-2026-67401, an authenticated SQL injection in EmailTrack that lets attackers write files and execute code as root.

cPanel disclosed CVE-2026-67401 on September 8, 2026: a SQL injection in the EmailTrack feature that allows authenticated account holders with mail-related permissions to create arbitrary files and execute code with root privileges. Fixes shipped in v11.110.0.143, v11.134.0.55, v11.136.0.39, v11.138.0.4, and WP2 channel v11.138.1.9, with all supported versions before those releases affected. Root-level execution poses severe risk to shared hosting providers and multi-tenant servers, as it removes isolation between cPanel accounts, websites, mailboxes, and backups. Researchers Ali Mustafa (rz1027) and abed1526 responsibly reported the flaw.

GBHackersSep 9, 07:27 UTC · 7d agoVulnerability CVE-2026-67401

Critical cPanel Flaw Could Let One Hosting Customer Take Root Control of a Whole Server

cPanel patched critical flaw CVE-2026-65643 letting authenticated hosting customers with addon or parked domain rights execute code as root and fully compromise servers.

cPanel issued patches on August 27, 2026 for CVE-2026-65643, a flaw in domain parking and addon domain functionality in cPanel & WHM that lets an authenticated account holder create arbitrary files and execute code as root, yielding full server control. Fixed builds cover the 11.110, 11.134, 11.136 and 11.138 branches, including WP Squared 11.138.1.7, and auto-update servers receive the fix automatically. No CVSS score, published CVE record, or evidence of exploitation has appeared, and the flaw is absent from CISA's KEV catalog as of August 27. The article also recaps related 2026 cPanel-ecosystem issues, including KEV-listed LiteSpeed plugin flaws and the in-the-wild-exploited Phusion Passenger problem.

The Hacker NewsAug 28, 09:45 UTC · 19d agoVulnerability CVE-2026-65643 CVE-2026-58048 CVE-2026-58047+3 CVEs

The Smishing Deluge: China-Based Campaign Flooding Global Text Messages

Unit 42 attributes a global smishing campaign with 194,000+ phishing domains impersonating tolls, banks, and couriers to the Smishing Triad.

Palo Alto Unit 42 attributes ongoing smishing texts about toll violations and package misdelivery to the Smishing Triad, targeting U.S. residents since April 2024. Researchers identified 194,345 FQDNs across 136,933 root domains registered since January 2024, mostly via Hong Kong registrar Dominet (HK) Limited with Chinese nameservers and hosting concentrated on U.S. cloud services. The decentralized campaign impersonates banking, cryptocurrency, e-commerce, healthcare, law enforcement, and social media services, and its scale points to a large phishing-as-a-service operation. Phishing pages harvest national ID numbers such as Social Security numbers, home addresses, payment details, and login credentials.

Palo Alto Unit 42Aug 17, 12:45 UTC · 29d agoPhishing & fraud in the wild1

CVE-2026-82430: Apache Storm Worker Launcher: Local Privilege Escalation to Root via Container Command Files Chowned to the Tenant

Setuid-root Apache Storm worker-launcher chowns worker directory to the tenant before reading its command file, enabling local root privilege escalation.

CVE-2026-82430 affects Apache Storm Worker Launcher (org.apache.storm:storm-core) versions 3.0.0 before 3.1.0, rated important. When launching Docker or OCI workers, the setuid-root worker-launcher transfers ownership of the entire worker directory to the untrusted topology user before reading and acting on the supervisor-written command file in that directory. An untrusted tenant can tamper with the command file to achieve local privilege escalation to root. Fixed in version 3.1.0.

oss-securitySep 13, 14:26 UTC · 2d agoVulnerability CVE-2026-82430

CVE-2026-82429: Apache Storm Worker Launcher: Local Privilege Escalation to Root via a Time-of-Check Race in the Worker Launcher

Apache Storm's setuid-root worker-launcher re-resolves paths during recursive chown/chmod, letting local users win a race to escalate to root.

CVE-2026-82429 affects Apache Storm Worker Launcher (org.apache.storm:storm-core) versions 3.0.0 before 3.1.0, rated important. The setuid-root worker-launcher walks worker directories with FTS calling lchown and chmod on full pathnames while running with effective uid 0, and both syscalls re-resolve the path at call time. A local attacker can exploit this time-of-check race by swapping path components to gain root privileges. Fixed in version 3.1.0.

oss-securitySep 13, 14:25 UTC · 2d agoVulnerability CVE-2026-82429

Plesk Backup Manager Flaw Lets Low-Privileged Users Gain Root Access to Servers

CVE-2026-68488 in Plesk Backup Manager lets low-privileged subscription users exploit a symlink race during restores to gain root on Linux servers.

CVE-2026-68488 is a symlink race condition in Plesk Obsidian for Linux Backup Manager during subscription-content restore operations, allowing a user with Panel and FTP access to change ownership of files outside their subscription and escalate to full root access. Affected versions are Plesk for Linux 18.0.80.6 and earlier and 18.0.79.10 and earlier; Plesk for Windows is not affected. Patches are available in 18.0.80.7 and 18.0.79.11 or later. The flaw requires valid subscription access, so it is not unauthenticated remote code execution, but successful exploitation yields complete server compromise, especially dangerous in shared-hosting and multi-tenant deployments.

Cyber Security NewsSep 13, 04:58 UTC · 3d agoVulnerability CVE-2026-68488

AD Rights Management Service (Part 2): Extraction, Offline Decryption, and the Unrotatable Key

Huntress research shows AD RMS SLC root key is unrotatable and never expires, so its compromise permanently exposes all RMS-protected documents.

Part 2 of Huntress's AD RMS series details server-side attacks: extracting the Server Licensor Certificate (SLC) private key and performing offline decryption of protected documents. The SLC key has no expiry or rotation mechanism, with a 255-year certificate validity (2002–2258), so whoever recovers it can decrypt every document the deployment ever protected, indefinitely. The author released SharpRMS, a unified tool combining the 2016 DisARMS client-side attacks with new server-side key extraction and decryption capabilities. The research frames the SLC as comparable to KRBTGT and the DPAPI domain backup key, though not equivalent to domain compromise.

HuntressSep 10, 04:00 UTC · 6d agoResearch

China-Made ZBT Routers Ship With Two Implants Giving Unauthenticated Attackers Root Access

VulnCheck discloses two factory implants, SPEAKINGSTONE and DARKLANTERN, in ZBT router firmware granting unauthenticated remote attackers root command execution.

VulnCheck found two previously undocumented implants in firmware from Shenzhen Zhibotong Electronics (ZBT), tracked as CVE-2026-74232 (SPEAKINGSTONE) and CVE-2026-74233 (DARKLANTERN), each rated 9.8 on CVSS 3.1. SPEAKINGSTONE (yunmgrd) beacons to a hardcoded C2 over UDP port 10000 and supports root command execution, PPPoE credential exfiltration, DNS hijacking, and reverse SSH tunnels; DARKLANTERN (infosrvd) listens on UDP port 9992 with weak hardcoded authentication. Scanning found 203 internet-facing DARKLANTERN instances across 22 countries, and 392 devices reported to the SPEAKINGSTONE backup C2, nearly all in China on China Mobile. No fixed firmware release is named, and ZBT's white-labeling means model number rather than brand is the reliable detection check.

The Hacker NewsSep 8, 15:59 UTC · 7d agoVulnerability in the wildCVE-2026-74232 CVE-2026-74233 CVE-2026-66747

Apple macOS Screen Sharing Flaw Exploited on Internet

Actively exploited CVE-2026-65400 in macOS Screen Sharing grants pre-auth root access; attackers deploy Monero miners on exposed systems.

NCSC-NL reported active exploitation of CVE-2026-65400 (CVSS 9.8), an authentication flaw in macOS Screen Sharing patched on August 6, 2026, with root access gained and a Monero miner planted on internet-exposed systems using port 5900. Related Screen Sharing bugs CVE-2026-43779, CVE-2026-43777, and CVE-2026-43760 were fixed in macOS Tahoe 26.6, and researcher @osxreverser noted a pre-auth flaw fixed alongside them affecting roughly 40,000 exposed hosts. Calif said an AI agent produced working exploits for both pre-auth bugs in four hours, underscoring the shrinking gap between patch release and weaponization.

The Hacker NewsAug 19, 05:22 UTC · 28d agoExploit / PoC in the wildCVE-2026-65400 CVE-2026-43779 CVE-2026-43777+1 CVEs

Gaming the system: how a Chinese-speaking actor turned Brazilian government sites into an SEO weapon

Check Point identifies Chinese-speaking group Gambling Goblin hijacking Brazilian government domains via malicious Apache modules for SEO-manipulated gambling phishing.

Check Point Research tracks a sustained campaign since mid-2025 against Brazilian government and educational organizations by Gambling Goblin, a Chinese-speaking cybercrime cluster linked to Earth Berberoka. Attackers compile and install malicious Apache modules that silently reverse-proxy visitors to phishing pages impersonating Google Play, Microsoft Store, and Amazon, chaining compromised high-reputation domains to inflate search rankings. The group deploys a heavily obfuscated Linux toolkit including DownPro, AlphaAgent, oRAT, a 3snake-based credential stealer, and SSH brute-forcers, with parallel phishing networks localized for Vietnamese, Spanish, and English victims.

Check Point ResearchSep 2, 10:16 UTC · 14d agoThreat actor

Linux Kernel ZcopyReaper Vulnerability Lets Local Attackers Gain Root Privileges

Linux kernel RDS zero-copy flaw CVE-2026-43502 (ZcopyReaper) lets unprivileged local users gain root; fix in 7.1-rc3, public PoC published.

CVE-2026-43502, dubbed ZcopyReaper, is a Linux kernel local privilege escalation flaw in the RDS zerocopy send path, present since kernel 4.17, allowing unprivileged local attackers to gain root. NebuSec researcher Yuan Tan demonstrated root escalation on openSUSE kernel 6.4.0-150600.23.100; the fix landed in commit 44b550d88b26 with Linux 7.1-rc3 the first patched mainline release. Exploitation requires CONFIG_RDS and CONFIG_RDS_TCP but not unprivileged user namespaces, and PoC exploit material is publicly released alongside more than 20 other exploitable 2026 kernel CVEs.

GBHackersSep 15, 08:18 UTC · 1d agoExploit / PoC CVE-2026-43502 CVE-2026-43501 CVE-2026-43074+4 CVEs

LiteSpeed Enterprise Flaw Could Let One Hosting Account Gain Root Access on a Shared Server

cPanel warns critical LiteSpeed Web Server Enterprise flaw (pre-6.3.7) lets shared-hosting account users gain root access.

A cPanel advisory published September 14 warns that a critical vulnerability in LiteSpeed Web Server Enterprise versions before 6.3.7 lets a low-privilege website user gain root access on shared-hosting servers, bypassing CageFS account isolation. LiteSpeed released version 6.3.7 on September 11, but auto-update may be delayed so admins should force the update manually. No CVE identifier, severity score, workaround, or exploitation information has been published. This is the third LiteSpeed root flaw since May, following CVE-2026-48172 and CVE-2026-54420 in the cPanel plugin, which were both actively exploited and added to CISA's KEV catalog.

The Hacker Newsupdated Sep 15, 12:19 UTC · 23h agofirst Sep 15, 06:52 UTC · 1d agoVulnerability 2 sources CVE-2026-48172 CVE-2026-54420

Root-Cause Attribution Is a Search Problem: Continual Search for Long-Horizon Agent Failures

Continual Search framework iteratively prompts LLM judges to keep searching agent execution logs, boosting long-horizon failure root-cause attribution accuracy.

The paper frames automated root-cause attribution (RCA) for long-horizon AI agent failures as a search problem, since relevant evidence is sparse and distributed across massive execution traces. The authors propose Continual Search, an iterative framework that nudges an LLM judge across successive turns to keep hunting unresolved diagnostic evidence instead of settling on an early plausible diagnosis. They introduce MegaRCA-Mix, a benchmark of 50 human-annotated failure trials on long-horizon, execution-heavy tasks. On MegaRCA-Mix, Continual Search improves GPT-5.5's F1 from 0.349 to 0.498 (over 40% gain), and lower-tier models can surpass higher-tier counterparts when search is effective.

Hugging Face daily papersSep 10, 20:00 UTC · 5d agoAI research1

Subject: CVE-2026-2035703: Tozed ZLT X300 5G CPE — Unauthenticated Remote Root Code Execution via TR-069 Command Injection (CVSS 9.8)

Tozed ZLT X300 5G CPE firmware 6.01.3 has an unauthenticated TR-069 command injection (CVE-2026-2035703, CVSS 9.8) enabling root code execution.

Tozed ZLT X300 5G CPE router firmware 6.01.3 contains an OS command injection (CWE-78) in the TR-069/CWMP client daemon netcwmpd, tracked as CVE-2026-2035703 with CVSS 9.8. The IPPingDiagnostics Host parameter is passed unsanitized into sprintf, and the resulting shell command executes via system_by_root() as root. An attacker operating a rogue LTE base station built from roughly $300 of SDR hardware can impersonate the carrier's Auto Configuration Server and inject arbitrary commands. The disclosure does not report any observed exploitation.

Full DisclosureSep 8, 17:30 UTC · 7d agoVulnerability CVE-2026-2035703

New GPUThor Rowhammer Defeats ECC on NVIDIA RTX A6000 to Gain Host Root Access

University of Toronto researchers present GPUThor, a Rowhammer attack that defeats ECC on NVIDIA RTX A4000-A6000 GDDR6 GPUs and achieves host root access.

GPUThor uses non-uniform hammering to bypass Target Row Refresh and overcome SECDED ECC on NVIDIA Ampere workstation GPUs with GDDR6 memory, inducing 72,000 to 377,552 bit flips per gigabyte across RTX A6000, A5000, A4500, and A4000 cards. Triple-bit silent data corruption enables host privilege escalation to root with the IOMMU enabled, reusing GPUBreach page-table corruption techniques, and double-bit DUEs allow escalation when the IOMMU is disabled during a ~10 ms lazy-service window. The attack cut end-to-end escalation time on the A6000 from 21.9 hours to 1.1 minutes. Reported to NVIDIA, Google, Microsoft, and AWS on April 29, 2026; findings were embargoed until August 25, 2026, and no CVE identifier was assigned.

The Hacker NewsSep 8, 16:03 UTC · 7d agoResearch1

Critical Cisco Nexus 9000 Flaw Lets Unauthenticated Remote Attackers Run Code as Root

Cisco patches critical CVE-2026-20212 (CVSS 9.8) in Nexus 9000 switches allowing unauthenticated remote root code execution, plus IOS XR hardening release.

Cisco released fixes for CVE-2026-20212 (CVSS 9.8), a flaw in 10 Silicon One-based Nexus 9000 switch models that binds a service to an unrestricted IP, leaving TCP ports 43210/43211 reachable in the default Layer 3 VRF and allowing unauthenticated remote attackers to execute code as root; exploitation attempts can also crash the S1HAL process. 45 NX-OS releases (10.3(1) through 10.6(3s)) are affected, with mitigations including infrastructure ACLs, the Live Protect shield lp00031, and fixed releases identified via Cisco's Software Checker. Cisco simultaneously issued an IOS XR hardening release bundling 7 umbrella CVEs, two rated 9.8 (CVE-2026-20274 for memory-safety bugs and CVE-2026-20279 for access-control bugs), affecting all releases with SMUs available for 14 releases and upgrades required for 93 of 111 listed releases. No malicious exploitation was reported as of the September 2 disclosure.

The Hacker NewsSep 3, 15:52 UTC · 12d agoVulnerability CVE-2026-20212 CVE-2026-20274 CVE-2026-20279+5 CVEs

Weekly Cybersecurity Newsletter – Top 50 Biggest Cybersecurity Stories of the Week

GBHackers weekly digest rounds up 50 stories including Microsoft's 973-CVE patch drop, exploited Cisco FMC flaws, and Claude agent attacks.

GBHackers' September 7-12, 2026 newsletter summarizes the 50 biggest cybersecurity stories of the week. Highlights include Microsoft patching a record 973 CVEs with two exploited zero-days, active exploitation of Cisco FMC, Check Point VPN and Ivanti flaws, China-linked crews chaining Chrome and Windows zero-days, AI agents mass-exploiting PaperCut to compromise 440 servers, and the emergence of Panzer cross-platform ransomware. It also covers Anthropic and OpenAI agentic AI incidents and CrowdStrike's SafeMind launch.

GBHackersSep 15, 11:44 UTC · 23h agoIndustry in the wild

Password spraying campaign targets AWS root user accounts across 150+ organizations

Datadog researchers observed a password spraying campaign attempting to authenticate as AWS root users across 150+ organizations.

Datadog Security Research observed a large-scale password spraying campaign attempting to authenticate as AWS root user accounts across more than 150 organizations. The campaign targeted root credentials rather than standard IAM users, and no confirmed compromises are stated in the report. Root account access would grant full control of affected AWS environments, making this a significant credential-attack campaign for cloud defenders.

Datadog Security LabsAug 31, 00:00 UTC · 16d agoThreat actor in the wild

Six new dnsmasq vulnerabilities open the door to DNS cache poisoning, local root

Six dnsmasq flaws enable DNS cache poisoning, DoS, memory leaks, and local root code execution; fixes ship in version 2.92rel2.

Researchers disclosed six dnsmasq vulnerabilities spanning memory safety and input validation, including heap buffer overflows in extract_name() and extract_addresses(), DNSSEC infinite-loop and out-of-bounds read flaws, and a DHCPv6 out-of-bounds write allowing local root code execution. Exploitation paths include DNS cache poisoning, bypassing security controls, remote denial of service, and local privilege escalation. Maintainers released version 2.92rel2 with fixes, and a stable 2.93 release is expected within weeks.

Help Net SecurityAug 24, 04:21 UTC · 23d agoVulnerability CVE-2026-2291 CVE-2026-4890 CVE-2026-4891+3 CVEs

TLD Tracker: Exploring Newly Released Top

Unit 42 tracked 19 newly released top-level domains and found large-scale phishing, unwanted program distribution, and cybersquatting tied to TLD launch dates.

Researchers analyzed 19 new generic TLDs, including .zip, .bot, .ing, and .meme, released or approaching general availability over roughly 18 months. Data from passive DNS, registry zone files, newly registered domain feeds, and the Tranco top-1M list showed phishing campaigns, potentially unwanted program distribution, and domain squatting on these TLDs. Abuse correlated with each TLD's rollout phases, indicating attackers monitor general availability dates to register and weaponize domains. The IANA root database now lists over 1,000 generic TLDs.

Palo Alto Unit 42Aug 17, 12:47 UTC · 29d agoResearch

Apple Updates Everything, (Mon, Sep 14th)

Apple patched a record 261 vulnerabilities across iOS 27, macOS Golden Gate 27, watchOS 27, and other platforms, with none flagged as exploited.

Apple's annual OS update shipped iOS/iPadOS 27, macOS Golden Gate 27, tvOS 27, watchOS 27, and visionOS 27 plus bug-fix releases for the 26 and 15 branches, fixing a record 261 vulnerabilities. Notable issues include multiple kernel flaws allowing root privilege escalation (CVE-2026-43689, CVE-2026-43691, CVE-2026-43698, CVE-2026-43786), remote code execution in CUPS (CVE-2026-43692), kernel memory corruption via malicious NFS servers (CVE-2026-43686, CVE-2026-43687), and WebKit memory corruption from crafted web content (CVE-2026-43715). No vulnerabilities are labeled as actively exploited, and Apple does not assign per-CVE severities. Users report iOS 26.7 being downloaded when iOS 27 is intended, and tools like Little Snitch and BlockBlock need updates before upgrading to macOS 27.

SANS Internet Storm CenterSep 14, 18:33 UTC · 1d agoVulnerability CVE-2022-3437 CVE-2026-20683 CVE-2026-28899+27 CVEs

New cPanel Vulnerability Allows Attacker to Gain Full Control of the Server

cPanel disclosed critical SQL injection CVE-2026-67401 in EmailTrack, letting authenticated users with mail privileges gain root code execution; patched builds available.

cPanel disclosed CVE-2026-67401 on September 8, 2026, a critical SQL injection in the EmailTrack feature that monitors email delivery and routing. An authenticated attacker holding a valid cPanel account with mail-related privileges can create arbitrary files and achieve code execution as root, enabling full compromise of hosting servers and exposure of co-tenant customers. All supported cPanel/WHM versions before specific patched builds (11.110.0.143, 11.134.0.55, 11.136.0.39, 11.138.0.4 and 11.138.1.9 WP2) are affected; upgrading is the primary mitigation. No exploitation was reported at disclosure.

Cyber Security NewsSep 9, 08:37 UTC · 7d agoVulnerability CVE-2026-67401

Has anybody seen my keys? A key-hierarchy strategy for rack-level security

Oxide's RFD 0301 proposes a rack-level key hierarchy using Shamir secret sharing and a trust quorum to protect data-at-rest keys.

Oxide's request for discussion (RFD 0301) lays out a key-hierarchy strategy for rack-level security, deriving keys from a rack secret protected by Shamir secret sharing across a trust quorum of sleds, with keys exchanged over authenticated sprockets sessions. The document maps which keys protect control-plane data, metrics, Crucible extents, and authentication tokens, and defines open questions on key lifecycle, locality, and compromise handling. Future work includes sealing shares with the root of trust so an attacker would need to steal K whole sleds to reconstruct the rack secret.

Hacker News · securitySep 7, 02:14 UTC · 9d agoResearch HN 52↑ · 3 comments

Cisco Fixed Critical RCE in Nexus 9000 Series Switches

Cisco patched CVE-2026-20212 (CVSS 9.8) in Silicon One-based Nexus 9000 switches, allowing unauthenticated remote root code execution via TCP ports 43210/43211.

Cisco patched CVE-2026-20212 (CVSS 9.8), a flaw in the Silicon One integration for Nexus 9000 Series switches that lets unauthenticated remote attackers execute code with root privileges. TCP ports 43210 and 43211 are exposed through the default Layer 3 VRF, and exploitation can also crash the S1HAL process, forcing device reloads. Cisco TAC discovered the flaw during a support case; PSIRT is not aware of public disclosure or malicious exploitation. Workarounds include infrastructure ACLs or blocking the exposed ports, alongside a Live Protect shield pending fixed NX-OS upgrades.

Security AffairsSep 3, 19:49 UTC · 12d agoVulnerability CVE-2026-20212

Any user process can escalate to root

A disclosed local privilege escalation flaw allows any user process to escalate to root on the affected system.

A Lobsters-linked security write-up describes a vulnerability in which any user process can escalate its privileges to root. The feed text provides no product name, CVE identifier, CVSS score, or exploitation details, limiting available detail. Local privilege escalation flaws are commonly chained with other issues for full system compromise, so defenders should review the full write-up for affected versions and patches.

Lobsters · securityAug 31, 13:46 UTC · 15d agoVulnerability

Omarchy: Any User Process Can Escalate to Root

A security write-up details how any user process on the Omarchy Linux setup can escalate privileges to root.

A post on 0xcc.io describes a local privilege escalation issue in Omarchy, the Arch-based Linux configuration, where any user process can escalate to root. The disclosure appears to describe a design-level weakness in the distribution's security model. No CVE identifier is mentioned in the available text.

Lobsters · securityAug 30, 18:11 UTC · 16d agoVulnerability

Hack One Robot, Reach the Next: Unitree G1 Security Flaws

Researcher chained two Unitree G1 flaws (CVE-2026-76639, CVE-2026-76640) to gain unauthenticated root access, with compromised robots able to infect others via Bluetooth.

Security researcher Olivier Laflamme chained a path-traversal file-write flaw (CVE-2026-76639) in the G1 chatbot service and a Bluetooth server buffer overflow (CVE-2026-76640) to achieve unauthenticated root access remotely. The chain abuses Unitree's cloud API as a decryption oracle for the AES-128 key that unlocks BLE and WebRTC channels, and a compromised robot can propagate the attack to nearby G1 units. Unitree patched the cloud ownership-check flaw, paid a $5,000 bounty, and firmware fixes for BLE pairing and the buffer overflow remain harder to deliver.

Security AffairsAug 29, 11:55 UTC · 17d agoVulnerability CVE-2026-76639 CVE-2026-76640

Cisco Warns of Ongoing Exploitation of Critical Email Gateway Zero-Day

Cisco Secure Email Gateway zero-day CVE-2026-76461 (CVSS 9.8) is actively exploited for root command execution; CISA added it to KEV.

Cisco disclosed critical zero-day CVE-2026-76461 (CVSS 9.8) in Secure Email Gateway, remotely exploitable without authentication via crafted emails containing malicious SQL statements, leading to arbitrary command execution with root privileges. The flaw affects physical and virtual appliances regardless of configuration and has no workarounds. Cisco PSIRT confirmed active exploitation, and CISA added the CVE to its KEV catalog on September 14 with a federal remediation deadline of September 17. Admins should review mail_logs for suspicious SQL statements such as 'COPY.*TO PROGRAM'.

Security Affairsupdated Sep 15, 20:46 UTC · 14h agofirst Sep 15, 13:00 UTC · 22h agoExploit / PoC in the wild 15 sources CVE-2026-764613· 2 reads