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
1 - 10 of 2720 results
10 July 2025
USN-7626-1 introduced a regression in Git
- Ubuntu 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
10 July 2025
Several security issues were fixed in resteasy, resteasy3.0.
- Ubuntu 25.04 ,
- 24.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2021-20289, CVE-2016-6348, CVE-2020-1695 + 8 others
10 July 2025
Several security issues were fixed in the kernel.
- Ubuntu 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2024-57850, CVE-2024-56596, CVE-2024-50047 + 3 others
9 July 2025
USN-7626-1 introduced a regression in Git.
- Ubuntu 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
8 July 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 16.04 LTS
CVE ID
CVE-2021-47260, CVE-2025-37798, CVE-2022-49909 + 7 others
8 July 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2024-41070, CVE-2025-37798, CVE-2024-53197 + 9 others
8 July 2025
Several security issues were fixed in Git.
- Ubuntu 25.04 ,
- 24.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2025-46835, CVE-2025-48386, CVE-2025-48385 + 3 others
8 July 2025
Several security issues were fixed in OnionShare.
- Ubuntu 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
8 July 2025
USN-7010-1 introduced a regression in DCMTK
- Ubuntu 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
8 July 2025
Several security issues were fixed in Ghostscript.
- Ubuntu 25.04 ,
- 24.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2025-27835, CVE-2024-56827, CVE-2024-29508 + 5 others
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