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Multiple Vulnerabilities in Ubuntu and Debian Linux Kernels

Multiple Vulnerabilities in Ubuntu and Debian Linux Kernels

First seen 2 Oct 2026, 06:02 UTC • •
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ThreatCluster AI
ThreatCluster •October 2, 2026 at 06:03 UTC
  • •Multiple vulnerabilities identified in both Ubuntu and Debian Linux Kernels.
  • •Attackers could exploit these vulnerabilities for various malicious activities.
  • •Users are urged to apply vendor-issued fixes promptly.

On October 2, 2026, multiple vulnerabilities were reported in both Ubuntu and Debian Linux Kernels. The Ubuntu Linux Kernel vulnerabilities could allow remote attackers to exploit issues leading to cross-site scripting, denial of service, elevation of privilege, and remote code execution. The Debian Linux Kernel vulnerabilities similarly allow for denial of service, elevation of privilege, and sensitive information disclosure. The affected systems include various versions of Ubuntu and Debian, with Debian stable distribution (trixie) versions prior to 6.12.111-1 being specifically mentioned. Users are advised to apply fixes issued by the vendors. No specific CVEs or severity ratings were provided in the articles. The status of exploitation for these vulnerabilities remains unclear.

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Timeline

2026-10-02
Vulnerabilities disclosed in Ubuntu Kernel
Multiple vulnerabilities were identified that could lead to serious security issues, including remote code execution.
Hkcert
2026-10-02
Vulnerabilities disclosed in Debian Kernel
Multiple vulnerabilities were identified that could allow denial of service and elevation of privilege.
Hkcert

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Common questions

Which versions of Ubuntu and Debian are affected?
The articles do not specify exact versions for Ubuntu, but Debian stable distribution (trixie) versions prior to 6.12.111-1 are affected.
What types of attacks can these vulnerabilities enable?
The vulnerabilities could allow for remote code execution, denial of service, elevation of privilege, and sensitive information disclosure.
What should users do to protect their systems?
Users should apply the fixes issued by the vendors as soon as they are available.