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USN-8742-1: Netty vulnerability

Ubuntu issues USN-8742-1 fixing a Netty DNS cache poisoning flaw caused by improper NS record bailiwick validation.

Ubuntu Security Notice USN-8742-1 addresses a vulnerability in the Netty framework in which NS records are incorrectly validated for bailiwick. An attacker could potentially exploit this to facilitate DNS cache poisoning attacks. Updated packages are available for supported Ubuntu releases.

Ubuntu Security Noticesupdated · 9h agofirst · 6d agoAdvisory 15 sources

Hackers Disable Endpoint Protection and Deploy Sliver Across Compromised Windows Domain

The Hunter's Ledger tracked campaign UTA-2026-024 using Sliver C2, Domain Admin account creation, and Ethereum-based C2 rotation to compromise a US organization's Windows domain.

The Hunter's Ledger tracked an intrusion at one unnamed US organization as UTA-2026-024, staged from exposed server 193.233.202.17 with a Sliver beacon. Operators created a non-expiring Domain Admin account, enabled RDP with NLA disabled, dumped SAM, SYSTEM and SECURITY hives plus LSASS memory, and disabled eight endpoint protection services. A Node.js implant resolved its C2 server from an Ethereum smart contract that rotated domains five times in five months, while SYSTEM scheduled tasks with backdated dates and DNS allowlist manipulation provided persistence. The infrastructure ties to a confirmed ransomware incident, but no encryptor deployment was proven in this intrusion.

Cyber Security News · 8d agoThreat actor in the wild

7th September – Threat Intelligence Report

Check Point weekly bulletin: exploited SonicWall SMA 1000 zero-days (CVE-2026-83548/49), JFrog Artifactory auth bypass, and a 2.8M-patient Baylor Genetics breach.

Check Point's weekly bulletin covers breaches including Thomson Reuters' C-Track platform (court records across 11 US states and Canada), Baylor Genetics (2.8M patients and employees, SSNs included), Hit casinos in Slovenia, and Dropbox (~5,000 accounts via abused Lenovo email verification). SonicWall patched two exploited SMA 1000 zero-days, including CVE-2026-83548, a CVSS 10.0 pre-authentication SSRF, while JFrog fixed exploited authentication bypass CVE-2026-82329 (CVSS 9.8). Malware and actor coverage includes Gambling Goblin, JSCeal, Mirage Kitten's NodeRabbit/PollCat campaign, and DPRK Contagious Interview macOS activity, plus a FalconFlank privilege-escalation PoC against CrowdStrike Falcon.

Keys to the Kingdom: Erlang/OTP SSH Vulnerability Analysis and Exploits Observed in the Wild

Attackers actively exploit CVE-2025-32433, a CVSS 10.0 unauthenticated RCE in Erlang/OTP SSH, heavily targeting OT and critical infrastructure networks.

CVE-2025-32433 enables unauthenticated RCE in Erlang/OTP's SSH daemon via SSH connection protocol messages (codes >= 80) processed before authentication, affecting versions before OTP-27.3.3, OTP-26.2.5.11 and OTP-25.3.2.20. Unit 42 recorded a spike in exploitation between May 1-9, 2025, with 70% of detections on firewalls protecting OT networks, disproportionately affecting healthcare, agriculture, media and high technology. Observed payloads bind TCP-connected shells or launch Bash reverse shells to hosts like 146.103.40.203:6667, with randomized DNS lookups under dns.outbound.watchtowr.com indicating OAST-driven blind RCE validation.

Palo Alto Unit 42 · Aug 17, 2026Exploit / PoC in the wildCVE-2025-32433

USN-8514-2: OpenSSH vulnerability

Ubuntu backports an OpenSSH fix to older LTS releases for an scp flaw enabling setuid file placement and privilege escalation.

USN-8514-2 extends the USN-8514-1 OpenSSH fix to Ubuntu 14.04 LTS, 18.04 LTS, and 20.04 LTS. The flaw stems from incorrect file permission handling when downloading files as root using the legacy scp protocol without the preserve-mode option. An attacker could exploit this to install setuid or setgid files on the system, potentially leading to privilege escalation.

Ubuntu Security Notices · 21h agoVulnerability

USN-8731-1: MiniUPnPd vulnerability

Ubuntu issued USN-8731-1 fixing a MiniUPnPd integer underflow allowing remote DoS or information disclosure via malformed SOAPAction headers.

Ubuntu released USN-8731-1 to address an integer underflow vulnerability in MiniUPnPd's SOAPAction header parsing. A remote attacker could send a malformed SOAPAction header containing a single quote to trigger a denial of service or information disclosure. MiniUPnPd is a lightweight UPnP daemon widely deployed on routers and gateways.

Ubuntu Security Notices · 9d agoAdvisory1

USN-8751-1: Urwid vulnerabilities

Ubuntu USN-8751-1 patches Urwid weak PRNG issue allowing local attacker possible denial of service or code execution.

Katriel Moses discovered that Urwid used a weak pseudo-random number generator. A local attacker could potentially exploit this issue to cause a denial of service or execute arbitrary code. Ubuntu has released a patch under USN-8751-1.

Ubuntu Security Notices · 3d agoAdvisory1

USN-8675-2: Perl vulnerabilities

Ubuntu issued USN-8675-2 fixing two Perl flaws (CVE-2026-12087, CVE-2026-13221) enabling information disclosure and regex-based security bypass on 26.04 LTS.

Ubuntu released USN-8675-2, extending the fixes from USN-8675-1 to Perl packages on Ubuntu 26.04 LTS. The update addresses CVE-2026-12087, an out-of-bounds heap read in the Socket module when handling short source addresses, which could lead to information disclosure. It also fixes CVE-2026-13221, where regular expressions containing many fixed string alternatives could produce incorrect matches and bypass security restrictions. No exploitation is reported in the notice.

USN-8670-3: curl vulnerability

Ubuntu issued USN-8670-3 updating curl for Ubuntu 26.04 LTS to fix a flaw where wrong client certificates could be used on reused connections.

Ubuntu Security Notice USN-8670-3 extends the curl fix from USN-8670-1 to Ubuntu 26.04 LTS. The flaw, discovered by Joshua Rogers, involves incorrect handling of connection reuse when client certificate settings change, potentially causing the wrong client certificate to be presented. The issue can lead to authentication mix-ups rather than remote code execution.

Ubuntu Security Notices · 8d 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 · 9d agoAdvisory

ZDI-26-575: Linux Kernel Net Scheduler Packet Classifier API Time-Of-Check Time-Of-Use Local Privilege Escalation Vulnerability

ZDI publishes ZDI-26-575, a CVSS 7.5 TOCTOU local privilege escalation in the Linux kernel net scheduler packet classifier API.

The Zero Day Initiative disclosed a time-of-check time-of-use flaw in the Linux kernel's net scheduler packet classifier API that permits local privilege escalation. Exploitation requires the attacker to first execute high-privileged code on the target system. ZDI assigned a CVSS rating of 7.5; no CVE id is provided in the text.

ZDI Published Advisories · Aug 13, 2026Advisory1

ZDI-26-579: Cisco Identity Services Engine zipFiles Directory Traversal Remote Code Execution Vulnerability

ZDI disclosed an authenticated directory traversal flaw (CVE-2026-20181) in Cisco Identity Services Engine allowing remote code execution, CVSS 7.2.

The Zero Day Initiative published ZDI-26-579 describing a directory traversal in the zipFiles functionality of Cisco Identity Services Engine. Authenticated remote attackers can execute arbitrary code on affected installations. ZDI assigned a CVSS score of 7.2 and the identifier CVE-2026-20181.

ZDI Published Advisories · Aug 13, 2026VulnerabilityCVE-2026-20181

USN-8767-1: Snapcast vulnerability

Ubuntu patches Snapcast mishandling of crafted JSON-RPC requests enabling remote code execution and data exposure.

Ubuntu security notice USN-8767-1 addresses a vulnerability in Snapcast, a multiroom audio streaming server. The software incorrectly handled crafted JSON-RPC requests, which could allow a remote attacker to execute arbitrary code or obtain sensitive information. Users are advised to update the snapcast package.

Ubuntu Security Notices · 1d agoAdvisory

ZDI-26-577: Trend Micro VPN OpenSSL Configuration Uncontrolled Search Path Element Local Privilege Escalation Vulnerability

ZDI disclosed a local privilege escalation (CVE-2026-67212, CVSS 7.0) in Trend Micro VPN's OpenSSL configuration, requiring prior low-privileged code execution.

The Zero Day Initiative published advisory ZDI-26-577 describing an uncontrolled search path element vulnerability in Trend Micro VPN's OpenSSL configuration. Local attackers who can already execute low-privileged code on an affected installation can escalate privileges. ZDI rated the issue 7.0 on CVSS and assigned CVE-2026-67212.

ZDI Published Advisories · Aug 13, 2026VulnerabilityCVE-2026-67212

ZDI-26-583: Clam AntiVirus 7z Archive Parsing Integer Overflow Remote Code Execution Vulnerability

Zero Day Initiative discloses CVE-2026-20215, an integer overflow in ClamAV's 7z archive parsing enabling remote code execution, rated CVSS 8.4.

The Zero Day Initiative published ZDI-26-583 for an integer overflow in Clam AntiVirus's 7z archive parsing. A remote attacker can execute arbitrary code when the antivirus processes a crafted archive, with attack vectors varying by implementation. The flaw is tracked as CVE-2026-20215 and rated CVSS 8.4. The advisory does not mention active exploitation.

ZDI Published Advisories · Aug 13, 2026VulnerabilityCVE-2026-202151

Critical Check Point VPN Flaws Let Unauthenticated Attackers Execute Remote Code

Check Point fixed critical unauthenticated RCE flaws CVE-2026-85102 and CVE-2026-85103 in its VPN gateways; no exploitation observed yet.

Check Point disclosed two critical vulnerabilities affecting Remote Access VPN and Site-to-Site VPN on its security gateways. CVE-2026-85102 is an authentication-bypass flaw that can lead to unauthenticated remote code execution, while CVE-2026-85103 is a heap overflow in ASN.1 decoding that can corrupt memory and also result in RCE. Fixes are available via Jumbo Hotfix, with Check Point Live Patch rollout starting September 9, 2026; the vendor found and fixed the issues through internal research and reports no evidence of exploitation in the wild.

GBHackersupdated · 32m agofirst · 6d agoVulnerability 10 sourcesCVE-2026-85102CVE-2026-85103

USN-8757-1: cgit vulnerability

Ubuntu USN-8757-1 fixes cgit path-handling flaw letting remote attackers read files outside repositories during HTTP cloning.

Ubuntu Security Notice USN-8757-1 addresses a cgit vulnerability in which repository paths are incorrectly handled when HTTP cloning is enabled. A remote attacker could exploit the flaw to access files outside the repository and obtain sensitive information. The notice provides no CVE identifier or exploitation details.

Ubuntu Security Notices · 2d agoAdvisory

ZDI-26-569: Linux Kernel Net Scheduler True Link Equalizer Race Condition Local Privilege Escalation Vulnerability

ZDI publishes ZDI-26-569, a CVSS 7.5 race condition local privilege escalation in the Linux kernel net scheduler true link equalizer.

The Zero Day Initiative disclosed a race condition in the Linux kernel's net scheduler true link equalizer component enabling local privilege escalation. Exploitation requires the attacker to first run high-privileged code on the target system. The advisory carries a CVSS rating of 7.5; no CVE id is listed in the disclosure text.

ZDI Published Advisories · Aug 13, 2026Advisory

ZDI-26-646: Progress Software Kemp LoadMaster escape_quotes Uninitialized Memory Remote Code Execution Vulnerability

ZDI publishes ZDI-26-646 for CVE-2026-8037, an authenticated uninitialized-memory remote code execution flaw in Progress Kemp LoadMaster, rated CVSS 7.2.

Zero Day Initiative published advisory ZDI-26-646 describing an uninitialized memory flaw in Progress Software Kemp LoadMaster's escape_quotes function. Successful exploitation allows remote authenticated attackers to execute arbitrary code on affected installations. ZDI rated the issue CVSS 7.2 and assigned CVE-2026-8037.

USN-8753-1: libinput vulnerability

Ubuntu patches libinput flaw letting local attackers inject udev properties and execute arbitrary code as root.

USN-8753-1 fixes a libinput vulnerability where device properties are not properly escaped. A local attacker could inject arbitrary udev properties and execute arbitrary code as root, a full local privilege escalation on affected Linux desktop systems. Ubuntu shipped updated packages.

Ubuntu Security Notices · 2d agoAdvisory

Trezor customers hit with phishing calls and letters after shipping-partner breach

A breach at shipping partner ShipMonk exposed data for about 67,000 additional US Trezor customers, who now face phishing calls and QR scam letters.

SatoshiLabs, maker of Trezor hardware wallets, confirmed the August 2026 ShipMonk breach exposed names, emails, phone numbers, and shipping addresses for roughly 67,000 US customers who ordered between November 2019 and August 2021, on top of 3,889 customers affected initially. ShipMonk attributed the intrusion to attackers exploiting an SQLi zero-day in Metabase's Cloud SaaS platform and retained data past the 90-day deletion requirement. Trezor's own systems were not compromised; customers are reporting phishing calls and QR-code phishing delivered via physical letters.

Help Net Security · 8d agoData breach

ZDI-26-622: Microsoft Windows IKEv2 AES-GCM Decryption Integer Underflow Remote Code Execution Vulnerability

ZDI disclosed CVE-2026-50696, a CVSS 8.1 integer underflow in Windows IKEv2 AES-GCM decryption enabling unauthenticated remote code execution on specific IPsec configurations.

The Zero Day Initiative published ZDI-26-622 describing a remote code execution vulnerability in Microsoft Windows' IKEv2 AES-GCM decryption path, caused by an integer underflow. Authentication is not required for exploitation, but only systems using specific IPsec configurations are affected. ZDI assigned the vulnerability a CVSS score of 8.1 and the identifier CVE-2026-50696.

ZDI-26-637: Oracle Outside In Technology GEM File Parsing Integer Overflow Remote Code Execution Vulnerability

ZDI disclosed an integer overflow in Oracle Outside In Technology's GEM file parsing (CVE-2026-60413) enabling user-triggered remote code execution.

Zero Day Initiative published ZDI-26-637, a CVSS 7.8 integer overflow in GEM file parsing within Oracle Outside In Technology. Exploitation requires user interaction, such as opening a malicious file or visiting a malicious page, and results in arbitrary code execution on affected installations. The flaw is tracked as CVE-2026-60413. No exploitation activity is reported.

ZDI-26-567: Norton Utilities Ultimate NortonUtilitiesSvc Link Following Local Privilege Escalation Vulnerability

ZDI discloses CVE-2024-13962, a CVSS 7.8 link-following local privilege escalation flaw in Norton Utilities Ultimate's NortonUtilitiesSvc service.

The Zero Day Initiative published ZDI-26-567, a local privilege escalation vulnerability in Norton Utilities Ultimate. An attacker must already be able to execute low-privileged code on the system before exploiting the symlink/link-following flaw in NortonUtilitiesSvc. The issue carries a CVSS score of 7.8 and is tracked as CVE-2024-13962.

ZDI Published Advisories · Aug 13, 2026AdvisoryCVE-2024-13962

ZDI-26-684: Linux Kernel KSMBD Query Directory Request Race Condition Remote Code Execution Vulnerability

ZDI discloses CVE-2026-64397, a CVSS 9.0 unauthenticated remote code execution race condition in Linux Kernel KSMBD.

ZDI-26-684 describes a race condition in the Linux Kernel KSMBD subsystem's Query Directory Request handling that allows unauthenticated remote attackers to execute arbitrary code. Only systems with KSMBD enabled are vulnerable. ZDI assigned a CVSS rating of 9.0 and CVE-2026-64397.

ZDI-26-535: (Pwn2Own) Microsoft Exchange External Control of File Path Remote Code Execution Vulnerability

ZDI advisory discloses Microsoft Exchange remote code execution flaw (CVE-2026-62911, CVSS 7.2) with bypassable authentication.

ZDI advisory ZDI-26-535 describes an external control of file path vulnerability in Microsoft Exchange, tracked as CVE-2026-62911 with a CVSS score of 7.2. Remote attackers can execute arbitrary code on affected installations. Although authentication is required, the existing authentication mechanism can be bypassed.

ZDI Published Advisories · Aug 11, 2026AdvisoryCVE-2026-62911