Search: “Hexnode”

USN-8773-1: GNU Guix vulnerability

Ubuntu issued USN-8773-1 fixing a GNU Guix flaw that exposed build outputs to local users before metadata finalization, enabling possible privilege escalation.

Ubuntu published security notice USN-8773-1 to address a flaw in GNU Guix where build outputs were made accessible to local users before their file metadata was finalized. A local attacker could possibly leverage this window to gain elevated privileges on the affected system. The notice ships updated packages for supported Ubuntu releases and reports no exploitation.

Ubuntu Security Notices·11:33 UTC · 6h agoAdvisory 12 sources

Top 10 Best Mobile Device Management (MDM) Solutions in 2026

A 2026 MDM buyer guide ranks ten solutions, recommending Microsoft Intune for Microsoft 365 estates and Jamf for Apple-only environments.

A 2026 buyer guide evaluates ten mobile device management solutions, leading with Microsoft Intune as the default for Microsoft 365 organizations and Jamf for Apple estates. It recommends choosing the enrolment model before selecting a vendor and clarifying BYOD visibility to prevent privacy disputes. Kandji, Mosyle, Omnissa Workspace ONE, ManageEngine, Scalefusion, and Hexnode are covered as alternatives. Guidance ties MDM to Zero Trust data access policies via Apple User Enrolment and Android work profiles.

Cyber Security News·Sep 9, 07:45 UTC · 7d agoIndustry

N4D Mesh Controller: New infrastructure, a UPX-packed agent labeled "go-titan," and how to hunt for it

Datadog researchers detonated a new N4D Mesh Controller sample in microVMs, revealing rotated infrastructure, a UPX-packed go-titan agent, and persistence behavior.

Datadog Security Research executed a newer N4D Mesh Controller sample in isolated microVMs, uncovering rotated command infrastructure and a UPX-packed agent labeled go-titan. Runtime evidence showed MCP tool abuse, multi-service scanning, and persistence mechanisms. The report provides hunting guidance for defenders tracking this infrastructure.

Datadog Security Labs·Aug 20, 00:00 UTC · 27d agoMalware

The 12 Best Mobile Device Management (MDM) Solutions, Compared and Priced

A comparison of 12 MDM platforms ranks Microsoft Intune as best value for Microsoft 365 estates and Jamf, Kandji, and Mosyle for Apple fleets.

The buyer's guide compares 12 mobile device management (MDM) products, naming Microsoft Intune best value since it is included in Microsoft 365 E3/E5, and Jamf, Kandji, and Mosyle as Apple specialists with day-one OS support and automated compliance remediation. Eight of the twelve publish rates; per-device pricing punishes multi-device users, while Microsoft, Omnissa, and IBM offer per-user options. Free tiers from Mosyle, Miradore, and ManageEngine support genuine small deployments.

GBHackers·updated Sep 10, 08:19 UTC · 6d ago·first Sep 10, 08:09 UTC · 6d agoIndustry 4 sources

Vulnerabilities fixed in libxml2-2.15.4

libxml2 2.15.4 fixes an out-of-bounds read in xmlregexp's NXT macro plus several integer overflow and parsing flaws.

libxml2 2.15.4 (released September 1, 2026) includes security fixes: an out-of-bounds read in the xmlregexp NXT macro, missing overflow checks in dict.c, uri.c, and valid.c, an integer overflow in xmlIO before the writecallback, and an overflow check in xmlXPtrEvalXPtrPart. The release also propagates parseFlags in xmlXIncludeProcess and xmlXIncludeProcessTree. No CVE identifiers, exploitation, or severity ratings are given in the announcement.

oss-security·Sep 4, 21:23 UTC · 11d agoVulnerability

Photos: Black Hat USA 2026, part two

Help Net Security·Aug 6, 00:00 UTC · Aug 6, 2026Industry

USN-8563-5: nginx vulnerability

Ubuntu ships improved nginx fix for CVE-2026-42533 after earlier patch regression; flaw allows remote crash and possible code execution.

USN-8563-5 provides a better fix for CVE-2026-42533 after the original fix from USN-8563-1 was backed out in USN-8563-2 because it caused a regression. The flaw stems from nginx incorrectly handling certain map directives using regex matching and capture variables, allowing a remote attacker to crash nginx, causing denial of service, or possibly execute arbitrary code. The original advisory also described a use-after-free in the ngx_http_ssi_module when configured with Server-Side Includes, proxy_pass, and proxy buffering.

Ubuntu Security Notices·Sep 14, 11:35 UTC · 2d agoAdvisoryCVE-2026-42533

USN-8755-1: libvips vulnerability

Ubuntu patches libvips flaw where crafted TIFF images converted to HEIF cause a crash, enabling denial of service.

USN-8755-1 fixes a libvips vulnerability in which specially crafted TIFF images are incorrectly handled when saved as HEIF, causing the library to crash. The impact is limited to denial of service with no code execution indicated. Ubuntu shipped updated packages.

Ubuntu Security Notices·Sep 14, 12:47 UTC · 2d agoAdvisory

Show HN: Ordewell – turn one goal into an ordered plan of coding-agent tasks

Ordewell is an open-source tool that decomposes a single goal into an ordered plan of coding-agent tasks, posted on Hacker News.

Ordewell, shared as a Show HN project on GitHub, converts one high-level goal into an ordered plan of tasks for coding agents to execute. The post received 40 points and 29 comments on Hacker News. It focuses on task planning and orchestration for autonomous coding agents.

Hacker News · AI·Sep 15, 13:31 UTC · 1d agoAI tools & infraHN 40↑ · 29 comments

USN-8733-1: Gzip vulnerabilities

Ubuntu issued USN-8733-1 fixing two Gzip flaws: insecure gzexe temp files allowing file overwrites, and a crafted-file DoS/info exposure bug.

USN-8733-1 updates Gzip in Ubuntu to fix CVE-2026-41991, where the gzexe utility created temporary files insecurely when mktemp was unavailable, letting a local attacker overwrite arbitrary files. It also fixes CVE-2026-41992, incorrect handling of certain compressed files that could expose sensitive information or crash Gzip in a denial of service. Both issues have local impact and are addressed via updated Ubuntu packages.

Ubuntu Security Notices·Sep 7, 12:23 UTC · 9d agoAdvisoryCVE-2026-41991CVE-2026-41992

ZDI-26-593: NVIDIA TensorRT ONNX File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

ZDI disclosed a second TensorRT heap-based buffer overflow RCE (CVE-2026-24268, CVSS 7.8) in ONNX file parsing, requiring user interaction.

The Zero Day Initiative published advisory ZDI-26-593 covering another heap-based buffer overflow in NVIDIA TensorRT's ONNX file parsing. A remote attacker can execute arbitrary code if the target opens a malicious file or visits a crafted page. ZDI rated the vulnerability CVSS 7.8 and assigned CVE-2026-24268.

ZDI Published Advisories·Aug 24, 05:00 UTC · 23d agoAdvisoryCVE-2026-24268

Show HN: Self-hosted company OS, Claude Code and Codex agents in departments

OtoDock, a self-hosted company OS that organizes Claude Code and Codex AI agents into departments, was launched on GitHub via Show HN.

OtoDock is a self-hosted 'company OS' shared on GitHub through a Show HN post, presenting Claude Code and Codex AI agents organized into department-style teams. The Hacker News feed entry shows the post reached 20 points with 5 comments; no further technical details are provided in the available text.

Hacker News · security·Sep 9, 17:57 UTC · 7d agoAI tools & infraHN 20↑ · 5 comments1

Attackers Turn Trusted Node.js Runtime Into Malware Delivery Tool in Targeted Attacks

Symantec reports multiple threat actors, including KongTuke, abusing the trusted signed Node.js runtime and blockchain C2 (EtherHiding) to deliver backdoors in targeted attacks.

Symantec's Threat Hunter Team (Broadcom) reports that since February 2026 attackers have used the legitimate signed node.exe binary and interpreted scripts to deliver implants while evading signature-based detection, hitting government departments, technology companies, and hotels. One intrusion at an Asian technology firm (March 23–July 25, 2026) used ClickFix social engineering, the official Node.js installer, and EtherHiding to fetch commands via the Ethereum blockchain after AdaptixC2 and Cobalt Strike attempts were blocked. Related chains involve KongTuke (Woodgnat) using ModeloRAT, Mistic, NexShield, and GateKeeper, plus C2Looper, AsukaStealer, and EtherRAT; GuidePoint Security separately linked a fake-CAPTCHA ClickFix campaign to at least 31 compromised organizations using the Polygon blockchain as a dynamic C2 address book.

The Hacker News·Sep 3, 10:43 UTC · 13d agoThreat actor in the wild1

UltraViolet Cyber Equinox measures detection coverage against MITRE frameworks

UltraViolet Cyber launches Equinox, an AI-automated platform mapping SIEM and EDR detection coverage against MITRE ATT&CK and ATLAS frameworks.

UltraViolet Cyber announced Equinox, a detection engineering platform from its TIDE team that maps existing detections and log sources against MITRE ATT&CK and MITRE ATLAS. It performs coverage analysis in under 30 minutes and recommends vendor or custom detections to fill gaps, with engineers reviewing and backtesting each recommendation. In one customer trial, mapped technique coverage rose from 59 of 222 techniques (26.6%) to 136 of 222 (61.3%) without increasing alert volume.

Help Net Security·Sep 15, 13:33 UTC · 1d agoTools2

ZDI-26-546: Flowise Airtable_Agent Code Injection Remote Code Execution Vulnerability

ZDI discloses an unauthenticated code injection remote code execution flaw in Flowise's Airtable_Agent (CVE-2026-69264, CVSS 9.8).

ZDI advisory ZDI-26-546 describes a code injection vulnerability in the Flowise Airtable_Agent that allows remote attackers to execute arbitrary code. No authentication is required to exploit the flaw, which carries a CVSS rating of 9.8 and is assigned CVE-2026-69264. Flowise deployments exposing the vulnerable agent component are at risk of full server takeover.

ZDI Published Advisories·Aug 11, 05:00 UTC · Aug 11, 2026VulnerabilityCVE-2026-69264

Re: Vulnerabilities fixed in libxml2-2.15.4

libxml2 2.15.4 patches two flaws including a heap buffer overflow in xmlDictAddQString tracked as CVE-2026-86137 and CVE-2026-86138.

libxml2 releases before 2.15.4 are affected by an integer overflow in xmlDictAddQString in dict.c that leads to a heap-based buffer overflow, tracked as CVE-2026-86137 and CVE-2026-86138. The oss-security post from Debian's Salvatore Bonaccorso flags the fixed release for downstream tracking. No exploitation is mentioned in the disclosure.

oss-security·Sep 5, 12:16 UTC · 11d agoVulnerabilityCVE-2026-86137CVE-2026-86138

ZDI-26-591: NVIDIA TensorRT ONNX File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

ZDI disclosed a heap-based buffer overflow RCE (CVE-2026-24272, CVSS 7.8) in NVIDIA TensorRT ONNX parsing, requiring user interaction to exploit.

The Zero Day Initiative published advisory ZDI-26-591 covering a heap-based buffer overflow in NVIDIA TensorRT's ONNX file parsing. Successful exploitation allows remote code execution when a user opens a malicious ONNX file or visits a crafted page. ZDI rated the vulnerability CVSS 7.8 and assigned CVE-2026-24272.

ZDI Published Advisories·Aug 24, 05:00 UTC · 23d agoAdvisoryCVE-2026-24272

Breaking the Seal: Static Deobfuscation of JSCeal’s Compiled V8 Bytecode

Check Point's hasherezade details static deobfuscation of JSCeal, a V8-bytecode stealer targeting cryptocurrency applications since March 2024.

JSCeal is an infostealer distributed as compiled V8 bytecode (.jsc) executed by a bundled Node.js runtime, aimed at cryptocurrency applications. Other vendors track the same family under the names WEEVILPROXY or MeadowLocust. Check Point Research has tracked the campaign since early 2024, with activity dating back to March 2024. The write-up presents a static approach to unpacking the bytecode without executing it.

Check Point Research·Aug 31, 13:38 UTC · 16d agoMalware in the wild1

Google Open-Sources Mantis: A Modular Skills Toolkit That Lets Coding Agents Find, Reproduce and Patch Vulnerabilities

Google open-sourced Mantis, an Apache-2.0 modular skills toolkit that lets AI coding agents find, reproduce, and patch vulnerabilities with sandboxed verification.

Google released Mantis on GitHub under Apache 2.0 as a stack-agnostic set of slash-command skills that chain through the full vulnerability lifecycle: mining version history, building threat models, filtering findings, reproducing bugs in gVisor or network-disabled VMs, assembling exploit chains, patching, and scoring residual risk from 1 to 10. It runs with Gemini CLI, Antigravity CLI, the Google ADK, or comparable agent frameworks, and a supervisor skill (/mantis-meta-agent) can drive the whole loop. Google says the design targets the sub-7 percent true-positive rate of naive AI code scanning, and that its hierarchical summary tree cuts token overhead by over 85 percent. The toolkit is deployable for local and internal evaluation but not yet recommended for production.

MarkTechPost·Sep 9, 22:58 UTC · 6d agoAI tools & infra

PEEP: A Browser RAT Posing as a Chrome Extension

SOCRadar's STRU analyzed PEEP, an emerging Chromium-based RAT disguised as a Chrome extension enabling post-exploitation control of browsers.

SOCRadar's Threat Research Unit (STRU) identified and analyzed PEEP, a Chromium-based post-exploitation toolkit distributed as a browser extension. PEEP provides RAT-style capabilities while posing as a legitimate Chrome extension. It is assessed as an emerging threat worth monitoring by defenders.

SOCRadar·Sep 4, 09:50 UTC · 12d agoMalware

ZDI-26-592: NVIDIA TensorRT ONNX File Parsing Improper Validation of Array Index Remote Code Execution Vulnerability

NVIDIA TensorRT improper array index validation in ONNX parsing (CVE-2026-24238, CVSS 7.8) enables remote code execution.

ZDI-26-592 addresses improper validation of array index in NVIDIA TensorRT's ONNX file parsing, tracked as CVE-2026-24238 with CVSS 7.8. Exploitation permits remote code execution on affected installations and requires user interaction. The advisory was published by the Zero Day Initiative on August 24, 2026.

ZDI Published Advisories·Aug 24, 05:00 UTC · 23d agoAdvisoryCVE-2026-24238

The VMs Powering Mobile Agents (Instinct, Claude Code)

A teardown reveals Claude Code runs in Firecracker microVMs with a Rust PID 1 and MITM'd egress, while Instinct rents E2B sandboxes with git-based memory.

The author inspects the virtual machines hosting cloud agents: Claude Code runs in a Firecracker microVM with a custom Rust init (process_api) as PID 1, a 324 MB Bun harness on a read-only disk, and 443-only MITM'd SSE egress to api.anthropic.com with host-rotated OAuth tokens and no inbound access. Instinct rents E2B sandbox-as-a-service Firecracker microVMs (Ubuntu 22.04, 2 vCPU, 1.9 GB RAM) where agent memory is a git repo of Markdown committed by the agent and pushed to S3 as a single bundle, using short-lived STS credentials. Both platforms rely on Firecracker, differing mainly in fleet operator and guest boot configuration.

Hacker News · AI·Sep 8, 04:36 UTC · 8d agoAI tools & infraHN 58↑ · 19 comments1

Researchers Use Claude to Port Pre-Auth RCE Exploit From One PLC Model to Another

Forescout used Anthropic's Claude to port a working pre-auth RCE exploit for CVE-2021-31886 between WAGO PLCs, executing ARM shellcode on live hardware.

Forescout Vedere Labs used Claude interactively to port an RCE exploit for CVE-2021-31886, a CVSS 9.8 stack buffer overflow in the Nucleus FTP server's USER command, from a WAGO 750-852 to a WAGO 750-831 PLC, running attacker-supplied ARM shellcode. The final RCE stage cost $535.74 in API usage over 8 hours 32 minutes, and a follow-up attempt to build a C2 implant permanently bricked the device. CERT@VDE lists many Nucleus V1-based WAGO models as vulnerable with no updates available; Siemens plans no Nucleus NET remediation. The work follows a joint NSA/CISA/FBI/DOE/EPA advisory warning of AI-generated exploitation scripts targeting internet-exposed Siemens S7 PLCs.

The Hacker News·Sep 2, 07:47 UTC · 14d agoResearchCVE-2021-318862

Iran-Linked Hackers Use Fake LinkedIn Job Offers to Deploy NodeRabbit and PollCat RATs

Iran-linked Mirage Kitten targets software engineers with fake LinkedIn recruiter coding tests deploying new NodeRabbit and PollCat RATs.

Kaspersky researchers link the campaign to Mirage Kitten (also tracked as UNC1549, Smoke Sandstorm, Nimbus Manticore), with victims in aviation, aerospace and fintech in Egypt, Ethiopia and Afghanistan. Trojanized npm dependencies (colorized_terminal, pretty-log) bundled in coding-challenge archives launch the Node.js implants across Windows, Linux and macOS. NodeRabbit uses AES-256-GCM-encrypted C2 via Azure, and its third variant persists through a fake GitHub Copilot Helper VS Code extension plus Git post-merge/post-checkout hooks. PollCat is an obfuscated JavaScript RAT that registers with C2 before OTP authentication and inventories tools from 24 security vendors.

GBHackers·Sep 9, 12:52 UTC · 7d agoThreat actor in the wild1

HPE security advisory (AV26-873)

Canada's Cyber Centre relays HPE advisories covering multiple vulnerabilities in Aruba AOS-CX switches and Fabric Composer, urging updates.

The Canadian Centre for Cyber Security issued advisory AV26-873 noting multiple vulnerabilities in HPE Aruba Networking AOS-CX and Fabric Composer. Affected versions span AOS-CX releases through branches 10.10, 10.13, 10.16, 10.17, and 10.18, and Fabric Composer through 7.3.3. Administrators are urged to review HPE bulletins HPESBNW05133 and HPESBNW05134 and apply available updates.

Canadian Centre for Cyber Security·Sep 2, 13:38 UTC · 14d agoAdvisory

USN-8732-1: Minetest vulnerability

Ubuntu issued USN-8732-1 fixing a Minetest LuaJIT sandbox escape that let malicious mods execute arbitrary code on servers.

Ubuntu Security Notice USN-8732-1 addresses a flaw in Minetest where the Lua sandbox environment was not properly sanitized when using LuaJIT. A malicious mod could escape the sandbox, execute arbitrary code, and gain full file system access on the server. Administrators should update to the patched packages.

Ubuntu Security Notices·Sep 7, 10:31 UTC · 9d agoAdvisory

Hackers Deploy New SloppyRAT via ClickFix to Enable Ransomware Lateral Movement

Zscaler discovered SloppyRAT, a ClickFix-delivered RAT that gives ransomware operators reconnaissance, remote execution, and SOCKS proxy pivoting for lateral movement.

Zscaler identified SloppyRAT in June 2026, linked to a ransomware-related threat actor. The infection chain starts with a ClickFix lure abusing finger.exe over TCP port 79, then uses curl.exe, IronPython, CastleLoader, and CastleRAT before reflectively loading SloppyRAT as a DLL in memory. The RAT supports HTTPS command-and-control, system inventory, file operations, Defender tampering, and a reverse SOCKS proxy, with evasion features including runtime code encryption, indirect syscalls, certificate pinning, and a possible EtherHiding blockchain fallback. Its persistence code is buggy and the malware appears under development, but the pre-encryption foothold gives defenders a window to stop intrusions.

Cyber Security News·Sep 11, 09:12 UTC · 5d agoMalware in the wild 3 sources

ClickFix Campaign Compromises 31 Orgs, Abuses Polygon Blockchain

A ClickFix social engineering campaign compromised 31 organizations, abusing the Polygon blockchain via EtherHiding for dynamically updated command-and-control.

The campaign uses ClickFix-style social engineering to compromise victims, with 31 organizations affected. It employs EtherHiding to dynamically update its command-and-control server, abusing the Polygon blockchain as an attacker-controlled address book. This blockchain-based C2 approach makes the infrastructure more resilient and harder to take down.

Dark Reading·Sep 1, 13:56 UTC · 15d agoThreat actor in the wild

CVE-2026-73749: HPE ArubaOS-CX RCE

HPE patched CVE-2026-73749, a critical unauthenticated remote code execution flaw in ArubaOS-CX network switch software; affected devices need prompt updates.

HPE released patches for CVE-2026-73749, a critical unauthenticated remote code execution vulnerability in HPE Aruba Networking AOS-CX switch operating system. Published details are limited, but the flaw allows unauthenticated attackers to execute code on affected AOS-CX devices. Administrators running ArubaOS-CX should prioritize applying HPE's update.

SOCRadar·Sep 4, 14:36 UTC · 12d agoVulnerabilityCVE-2026-73749

Hackers Abuse YouTube Gaming Channels and SEO Poisoning to Deploy RATs and Chrome Hijacker

Unit 42 exposed CL-CRI-1171, a pay-per-install operation using YouTube gaming channels and SEO poisoning to deliver RATs and a Chrome hijacker.

Palo Alto Networks Unit 42 identified over 10,000 OfferLoader samples and 11 YouTube channels pushing trojanized installers via gaming lures and SEO-poisoned searches for tools like WinDirStat and Bluetooth drivers. Trojanized Inno Setup installers spawn three payload branches: Insomnia RAT (dual Node.js/Python backdoor that disables Microsoft Defender), ARKTunnel (undocumented RAT hiding its payload in a bitmap image and tunneling TCP/UDP), and Docro Hijacker (alters Chrome protected preferences to hijack search and affiliate links). The pay-per-install model sells each infection to multiple buyers, reaching gamers as well as corporate and government endpoints.

Cyber Security News·Sep 14, 08:01 UTC · 2d agoMalware in the wild1

Post-DEF CON Phishing Uses Malicious Google Doc to Deliver Malware

Huntress uncovered post-DEF CON phishing via X direct messages using a malicious Google Doc to deliver AMOS and NetSupport RAT malware.

Huntress uncovered a phishing campaign targeting attendees after Black Hat and DEF CON. Attackers used X direct messages pointing to a malicious Google Doc as the delivery vehicle. Payloads include AMOS, a macOS infostealer, and the NetSupport RAT, among other malware.

Huntress·Aug 19, 13:00 UTC · 28d agoPhishing & fraud

Iran-linked APT Mirage Kitten Uses Fake Job Tests to Spread Malware

Kaspersky reports Iran-linked Mirage Kitten delivers new NodeRabbit and PollCat malware to fintech and aviation targets via fake LinkedIn coding assessments.

Kaspersky researchers documented two previously undocumented Node.js malware families, NodeRabbit and PollCat, attributed with high confidence to Iran-linked APT group Mirage Kitten. The malware is delivered via fake recruiter personas on LinkedIn offering coding assessments hosted on Amazon S3, with instructions banning AI assistants so AI code-review tools would not flag the trojanized npm packages. NodeRabbit is cross-platform (Windows, Linux, macOS), uses AES-256-GCM-encrypted C2 on Azure, includes sandbox checks, and one variant installs a fake 'GitHub Copilot Helper' VS Code extension plus Git hook persistence. Victims identified so far are in fintech and aviation organizations across Egypt, Ethiopia, and Afghanistan.

Security Affairs·Sep 2, 10:37 UTC · 14d agoThreat actor in the wild2