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
4 - 13 of 10407 results
23 March 2026
Several security issues were fixed in the Linux kernel.
- Ubuntu 22.04 LTS
CVE ID
CVE-2025-71069, CVE-2025-71087, CVE-2024-41014 + 214 others
23 March 2026
Several security issues were fixed in the Linux kernel.
- Ubuntu 22.04 LTS
CVE ID
CVE-2025-22022, CVE-2025-68727, CVE-2025-38129 + 214 others
23 March 2026
Several security issues were fixed in pyOpenSSL.
- Ubuntu 25.10 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
23 March 2026
Several security issues were fixed in GVfs.
- Ubuntu 25.10 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
23 March 2026
Several security issues were fixed in LibTIFF.
- Ubuntu 25.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
20 March 2026
Several security issues were fixed in the Linux kernel.
- Ubuntu 20.04 LTS
CVE ID
CVE-2022-49267, CVE-2025-21780, CVE-2022-49072 + 5 others
20 March 2026
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS
CVE ID
CVE-2024-56581, CVE-2022-49267, CVE-2024-49927 + 7 others
20 March 2026
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2024-56581, CVE-2022-49267, CVE-2024-49927 + 7 others
19 March 2026
USN-8105-1 introduced a regression in FreeRDP
- Ubuntu 25.10 ,
- 24.04 LTS
19 March 2026
OpenStack Glance could be made to perform server-side request forgery
- Ubuntu 25.10 ,
- 24.04 LTS,
- 22.04 LTS
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