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.
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USN ID, name, description or CVE ID contains
2 - 11 of 10364 results
12 March 2026
util-linux could be made to run programs as an administrator.
- Ubuntu 25.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS
12 March 2026
Several security issues were fixed in OpenSSH.
- Ubuntu 20.04 LTS
CVE ID
12 March 2026
Several security issues were fixed in OpenSSH.
- Ubuntu 25.10 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
12 March 2026
Several security issues were fixed in Go Networking.
- Ubuntu 24.04 LTS,
- 22.04 LTS
CVE ID
CVE-2022-27664, CVE-2025-47911, CVE-2022-41723 + 3 others
12 March 2026
Several security issues were fixed in go-git.
- Ubuntu 24.04 LTS,
- 22.04 LTS
CVE ID
CVE-2025-21613, CVE-2026-25934, CVE-2025-21614 + 2 others
12 March 2026
python-cryptography could be made to expose sensitive information over the network.
- Ubuntu 25.10 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
12 March 2026
FreeType could be made to leak sensitive information.
- Ubuntu 25.10 ,
- 24.04 LTS
CVE ID
11 March 2026
Several security issues were fixed in .NET.
- Ubuntu 25.10 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
11 March 2026
Several security issues were fixed in curl.
- Ubuntu 25.10 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
CVE-2025-0167, CVE-2026-3784, CVE-2026-3783 + 2 others
11 March 2026
Several security issues were fixed in libpng.
- Ubuntu 16.04 LTS,
- 14.04 LTS
CVE ID
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