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
73 - 82 of 2765 results
16 December 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS
CVE ID
CVE-2024-50067, CVE-2024-53124, CVE-2025-40300 + 30 others
12 December 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2024-50067, CVE-2025-38666, CVE-2024-53112 + 19 others
11 December 2025
Several security issues were fixed in libpng.
- Ubuntu 25.10 ,
- 25.04 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2025-64720, CVE-2025-64506, CVE-2025-64505 + 1 other
10 December 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 20.04 LTS,
- 18.04 LTS
CVE ID
CVE-2024-50067, CVE-2022-49026, CVE-2025-37958 + 12 others
10 December 2025
Several security issues were fixed in GNU binutils.
- Ubuntu 25.10 ,
- 25.04 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2025-11412, CVE-2025-11414, CVE-2025-11495 + 5 others
9 December 2025
Several security issues were fixed in Netty.
- Ubuntu 25.10 ,
- 25.04 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
9 December 2025
python-apt could be made to crash if it opened a specially crafted file.
- Ubuntu 25.10 ,
- 25.04 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
9 December 2025
GnuPG could be made to corrupt a keyring.
- Ubuntu 18.04 LTS,
- 16.04 LTS
CVE ID
8 December 2025
Several security issues were fixed in radare2.
- Ubuntu 25.10 ,
- 25.04 ,
- 24.04 LTS,
- 20.04 LTS,
- 18.04 LTS
CVE ID
4 December 2025
CUPS could be made to stop responding if it received specially crafted network traffic.
- Ubuntu 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
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