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
11 - 20 of 861 results
2 February 2026
Several security issues were fixed in OpenJDK 25.
- Ubuntu 25.10 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
CVE-2026-21945, CVE-2026-21932, CVE-2026-21925 + 1 other
2 February 2026
Several security issues were fixed in MySQL.
- Ubuntu 25.10 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
CVE-2026-21937, CVE-2026-21941, CVE-2026-21964 + 3 others
2 February 2026
libpng could be made to crash if it opened a specially crafted file.
- Ubuntu 24.04 LTS
CVE ID
2 February 2026
Inetutils could allow unintended access to network services.
- Ubuntu 25.10 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
2 February 2026
The Internet Archive Python Library would allow unintended access to files.
- Ubuntu 25.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS
CVE ID
29 January 2026
Several security issues were fixed in Pagure.
- Ubuntu 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS
CVE ID
CVE-2024-4981, CVE-2024-47516, CVE-2024-47515 + 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 wlc.
- Ubuntu 25.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS
CVE ID
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