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
391 - 400 of 10355 results
27 October 2025
Several security issues were fixed in Ruby.
- Ubuntu 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2024-47220, CVE-2024-41946, CVE-2024-41123 + 3 others
27 October 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 20.04 LTS
CVE ID
CVE-2024-26700, CVE-2024-26896, CVE-2023-52593 + 1 other
24 October 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 24.04 LTS
CVE ID
CVE-2024-36357, CVE-2025-38385, CVE-2025-38204 + 170 others
24 October 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS
CVE ID
CVE-2025-38617, CVE-2025-21796, CVE-2025-37785 + 2 others
23 October 2025
Go Cryptography could allow unintended access to network services.
- Ubuntu 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
23 October 2025
fetchmail could be made to crash if it received specially crafted network traffic.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
22 October 2025
GStreamer Good Plugins could be made to crash as your login if it opened a specially crafted file.
- Ubuntu 20.04 LTS,
- 18.04 LTS
CVE ID
22 October 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 24.04 LTS,
- 22.04 LTS
CVE ID
CVE-2025-22054, CVE-2025-22079, CVE-2025-22035 + 56 others
22 October 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 22.04 LTS,
- 20.04 LTS
CVE ID
CVE-2024-26700, CVE-2023-52593, CVE-2025-38727 + 1 other
22 October 2025
Several security issues were fixed in Bind.
- Ubuntu 25.10 ,
- 25.04 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
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