Ubuntu Security Notices
Developers issue an Ubuntu Security Notice when a security issue is fixed in an official Ubuntu package. You can find additional guidance for high-profile vulnerabilities in the Ubuntu Vulnerability Knowledge Base section.
To report a security vulnerability in an Ubuntu package, please contact the Security Team.
The Security Team also produces OVAL files for each Ubuntu release. These are an industry-standard machine-readable format dataset that contain details of all known security vulnerabilities and fixes relevant to the Ubuntu release, and can be used to determine whether a particular patch is appropriate. OVAL files can also be used to audit a system to check whether the latest security fixes have been applied.
Search USNs
USN ID, name, description or CVE ID contains
3 - 12 of 10195 results
29 January 2026
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS
CVE ID
CVE-2024-27078, CVE-2024-49959, CVE-2024-56606 + 4 others
29 January 2026
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2024-27078, CVE-2024-49959, CVE-2024-56606 + 4 others
29 January 2026
Several security issues were fixed in the Linux kernel.
- Ubuntu 16.04 LTS
CVE ID
CVE-2024-50195, CVE-2021-47485, CVE-2025-39993 + 3 others
29 January 2026
Several security issues were fixed in the Linux kernel.
- Ubuntu 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2024-50195, CVE-2021-47485, CVE-2025-39993 + 3 others
29 January 2026
Several security issues were fixed in the Linux kernel.
- Ubuntu 14.04 LTS
CVE ID
CVE-2024-26689, CVE-2025-38352, CVE-2024-57850 + 1 other
29 January 2026
Several security issues were fixed in TeX Live.
- Ubuntu 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2022-24107, CVE-2022-24106, CVE-2024-25262 + 1 other
29 January 2026
Several security issues were fixed in the kernel.
- Ubuntu 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS
CVE ID
CVE-2025-21647, CVE-2025-22036, CVE-2025-21704 + 8 others
29 January 2026
Several security issues were fixed in containerd.
- Ubuntu 25.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
27 January 2026
Several security issues were fixed in FFmpeg.
- Ubuntu 25.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2025-59728, CVE-2025-63757, CVE-2025-59733 + 2 others
27 January 2026
Several security issues were fixed in OpenSSL.
- Ubuntu 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2025-69419, CVE-2026-22795, CVE-2025-69421 + 4 others
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