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 9603 results
3 July 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 22.04 LTS,
- 20.04 LTS
CVE ID
CVE-2025-37932, CVE-2024-50047, CVE-2025-37798 + 6 others
3 July 2025
libtpms could be made to crash if it received specially crafted input.
- Ubuntu 25.04 ,
- 24.10 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
3 July 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 20.04 LTS
CVE ID
CVE-2024-56551, CVE-2025-21993, CVE-2025-22045 + 29 others
2 July 2025
Several security issues were fixed in logback.
- Ubuntu 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
2 July 2025
Several security issues were fixed in ClamAV.
- Ubuntu 25.04 ,
- 24.10 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
2 July 2025
Several security issues were fixed in pcs.
- Ubuntu 22.04 LTS,
- 20.04 LTS,
- 16.04 LTS
CVE ID
CVE-2022-2735, CVE-2022-1049, CVE-2018-1086 + 1 other
2 July 2025
Several security issues were fixed in mongo-c-driver.
- Ubuntu 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS
CVE ID
2 July 2025
Several security issues were fixed in Flask-CORS.
- Ubuntu 25.04 ,
- 24.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS
CVE ID
CVE-2024-6839, CVE-2024-6866, CVE-2024-6844 + 2 others
1 July 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 24.04 LTS
CVE ID
CVE-2025-37798, CVE-2025-37997, CVE-2025-38001 + 4 others
1 July 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 24.04 LTS,
- 22.04 LTS
CVE ID
CVE-2025-37798, CVE-2025-37997, CVE-2025-38001 + 4 others
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