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  1. USN-8941-1: Squid vulnerabilities

    Ubuntu security notices · · Medium severity

    It was discovered that Squid incorrectly handled certain HTTP Transfer- Encoding headers. An attacker could possibly use this issue to perform HTTP request smuggling attacks, bypass security mechanisms, or poison web caches....

  2. USN-8943-1: Protocol Buffers vulnerability

    Ubuntu security notices · · Medium severity

    It was discovered that Protocol Buffers did not properly handle negative varint lengths or enforce recursion limits when parsing input in the PHP library. An attacker could possibly use this issue to cause applications using Protocol...

  3. USN-8942-1: .NET vulnerabilities

    Ubuntu security notices · · Medium severity

    Multiple security issues were discovered in .NET and this update includes new upstream .NET versions to fix these issues. .NET 8 has been updated to 8.0.32 in Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. .NET 10 has been updated to 10.0.13 in...

  4. USN-8944-1: ca-certificates update

    Ubuntu security notices · · Medium severity

    This update removes the "emSign ECC Root CA - G3" CA certificate due to intermediate CA certificates being compromised. In addition, in Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS, the ca-certificates package contained...

  5. USN-8945-1: XZ Utils vulnerability

    Ubuntu security notices · · Medium severity

    It was discovered that XZ Utils incorrectly handled certain memory allocation failures when reinitializing decoders for specific compressed file formats. An attacker could possibly use this issue to trigger an invalid memory write,...

  6. KVM escape exposes broader attack surface in Linux networking

    CSO Online Security · · Medium severity

    Security researchers have found a critical flaw in the Linux kernel’s networking stack that can let attackers escape a KVM virtual machine and execute code on the host system. The weakness could also potentially let attackers compromise...

  7. CISA Adds Six Known Exploited Vulnerabilities to Catalog

    All CISA Advisories · · Medium severity

    CISA has added six new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2026-96652 Plex Media Server Server-Side Request Forgery (SSRF) Vulnerability CVE-2026-96654...

  8. The Internet goes on high alert after discovery of 8 compromised TLS certs

    Ars Technica · · Medium severity

    Security personnel around the world are on high alert Tuesday following the discovery of eight TLS certificates with private keys so weak they could allow anyone to mint trusted browser and app credentials for any site on the Internet....

  9. Zeabur shutting down after second security breach in two months

    BleepingComputer · · Medium severity

    Development platform Zeabur has disclosed details of a cybersecurity incident in which an attacker used leaked internal credentials stored in plaintext to compromise its infrastructure and steal over 3.2 million environment variable...

  10. CISA KEV: CVE-2026-110936 — Siemens Software Center actively exploited

    CISA KEV · · Critical severity

    Siemens Software Center Uncontrolled Search Path Element Vulnerability. Siemens Software Center contains an uncontrolled search path element vulnerability that could allow an authenticated local attacker to place a specially crafted DLL...

  11. CISA KEV: CVE-2026-96652 — Plex Media Server actively exploited

    CISA KEV · · Critical severity

    Plex Media Server Server-Side Request Forgery (SSRF) Vulnerability. Plex Media Server contains a server-side request forgery (SSRF) vulnerability which could allow an attacker using any X-Plex-Token value to include a full URL in the...

  12. CISA KEV: CVE-2026-96654 — Plex Media Server actively exploited

    CISA KEV · · Critical severity

    Plex Media Server Improper Neutralization of Encoded URI Schemes in a Web Page Vulnerability. Plex Media Server contains an improper neutralization of encoded URI schemes in a web page vulnerability that could allow an attacker to call...

  13. CISA KEV: CVE-2026-96655 — Plex Media Server actively exploited

    CISA KEV · · Critical severity

    Plex Media Server Server-Side Request Forgery (SSRF) Vulnerability. Plex Media Server contains a server-side request forgery (SSRF) vulnerability that could allow an authenticated user to request arbitrary internal or external addresses...

  14. CISA KEV: CVE-2026-96656 — Plex Media Server actively exploited

    CISA KEV · · Critical severity

    Plex Media Server External Control of File Name or Path Vulnerability. Plex Media Server contains an external control of file name or path vulnerability which can allow an admin user to write arbitrary files that may be executed on...

  15. #StopRansomware: SafePay Ransomware

    CISA Alerts · · Critical severity

    Advisory at a Glance Title #StopRansomware: SafePay Ransomware Original Publication October 20, 2026 Executive Summary This advisory details recent activity by the SafePay ransomware group. SafePay actors have been highly active since...

  16. Governments Urged to Plan for Breaches That Defenses Cannot Stop

    PYMNTS.com · · Medium severity

    State and local governments need to prepare for attackers getting inside their networks, with cybersecurity protocols that contain intrusions before they disrupt water systems, transportation, benefits payments and other essential...

  17. Hitachi Energy MicroSCADA X SYS600 Product

    CISA Alerts · · Medium severity

    View CSAF Summary Hitachi Energy is aware of multiple vulnerabilities that affect MicroSCADA X SYS600 product versions listed in this document. These vulnerabilities can be exploited to carry out various attacks on the product. Please...

  18. Moxa AIG-302 ThingsPro Edge

    CISA Alerts · · Critical severity

    View CSAF Summary Successful exploitation of these vulnerabilities could allow an attacker to obtain and disclose sensitive information. The following versions of Moxa AIG-302 ThingsPro Edge are affected: Moxa AIG-302 ThingsPro Edge...

  19. WAGO OS Linux

    CISA Alerts · · Medium severity

    View CSAF Summary Two vulnerabilities in the Web-Based Management (WBM) interface of WAGO CC100, PFC100 G2, PFC200 G2, TP600, Edge Controller and WP400 devices allow an authenticated low-privileged user to bypass intended privilege...

  20. HMS Networks PEAK-System PCAN Windows drivers

    CISA Alerts · · Medium severity

    View CSAF Summary Successful exploitation of these vulnerabilities could crash the Windows kernel. The following versions of HMS Networks PEAK-System PCAN Windows drivers are affected: PEAK-System Device Driver Setup <=5.1.2.1151...

  21. AOMEI Backupper servers hijacked for minutes at a time to push backdoor

    Help Net Security · · Critical severity

    An unknown number of AOMEI Backupper users had their computers infected with a backdoor through an unusually stealthy supply chain attack, security researchers discovered. Between April and July 2026, attackers repeatedly altered...

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