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
12 - 21 of 9811 results
2 September 2025
Protocol Buffers could be made to crash if it received specially crafted input.
- Ubuntu 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
2 September 2025
KMail Account Wizard uses an insecure protocol.
- Ubuntu 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS
CVE ID
2 September 2025
Several security issues were fixed in KMail.
- Ubuntu 20.04 LTS,
- 18.04 LTS
CVE ID
2 September 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 24.04 LTS,
- 22.04 LTS
CVE ID
CVE-2025-37752, CVE-2025-21887, CVE-2025-38350 + 1 other
2 September 2025
Several security issues were fixed in PIM Messagelib.
- Ubuntu 18.04 LTS
CVE ID
2 September 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 22.04 LTS,
- 20.04 LTS
CVE ID
CVE-2024-57996, CVE-2025-38350, CVE-2024-27407 + 1 other
2 September 2025
Several security issues were fixed in KDE PIM.
- Ubuntu 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2024-50624, CVE-2020-11880, CVE-2017-17689 + 1 other
2 September 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 16.04 LTS
CVE ID
CVE-2021-47345, CVE-2025-37752, CVE-2024-57996 + 7 others
2 September 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 20.04 LTS
CVE ID
CVE-2022-49535, CVE-2025-37859, CVE-2025-38075 + 167 others
1 September 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
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