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
15 - 24 of 9580 results
24 June 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 22.04 LTS
CVE ID
CVE-2022-49728, CVE-2024-8805, CVE-2025-21962 + 64 others
24 June 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 24.04 LTS
CVE ID
CVE-2025-21699, CVE-2025-21672, CVE-2025-21682 + 30 others
24 June 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 24.04 LTS,
- 22.04 LTS
CVE ID
CVE-2024-57948, CVE-2025-21943, CVE-2025-21694 + 30 others
24 June 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 25.04
CVE ID
CVE-2025-23152, CVE-2025-23151, CVE-2025-37825 + 329 others
24 June 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 20.04 LTS
CVE ID
CVE-2024-57986, CVE-2025-21866, CVE-2024-56551 + 191 others
24 June 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 20.04 LTS
CVE ID
CVE-2022-49728, CVE-2024-56551, CVE-2024-8805 + 67 others
24 June 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 22.04 LTS
CVE ID
CVE-2025-22081, CVE-2024-46753, CVE-2025-21994 + 64 others
24 June 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 22.04 LTS
CVE ID
CVE-2022-49728, CVE-2024-8805, CVE-2025-21962 + 64 others
23 June 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 22.04 LTS
CVE ID
CVE-2025-22081, CVE-2024-46753, CVE-2025-21994 + 64 others
23 June 2025
Apache Log4j could be made to run programs as your login if it opened a specially crafted file.
- Ubuntu 14.04 LTS
CVE ID
Resources
Join the discussion
Canonical is offering
Expanded Security Maintenance
Canonical is offering Ubuntu Expanded Security Maintenance (ESM) for security fixes and essential packages.