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 9927 results
13 October 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 20.04 LTS
CVE ID
CVE-2025-38350, CVE-2025-21796, CVE-2025-38617 + 5 others
13 October 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS
CVE ID
CVE-2025-38618, CVE-2025-37785, CVE-2025-21796 + 4 others
13 October 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 20.04 LTS,
- 18.04 LTS
CVE ID
CVE-2025-38618, CVE-2024-50073, CVE-2025-37785 + 13 others
13 October 2025
Apache Subversion could be made to crash if it opened a specially crafted file.
- Ubuntu 16.04 LTS
CVE ID
9 October 2025
Several security issues were fixed in WebKitGTK.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
CVE-2025-43272, CVE-2025-43368, CVE-2025-43356 + 1 other
9 October 2025
DPDK could be made to crash if it received specially crafted network traffic.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
9 October 2025
Vim could be made to crash if it received specially crafted input.
- Ubuntu 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
9 October 2025
Several security issues were fixed in LibHTP.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2025-53537, CVE-2024-28871, CVE-2024-45797 + 1 other
8 October 2025
Several security issues were fixed in ImageMagick.
- Ubuntu 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
8 October 2025
Several security issues were fixed in FORT Validator.
- Ubuntu 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS
CVE ID
CVE-2024-45236, CVE-2024-45239, CVE-2024-45237 + 4 others
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