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
1 - 10 of 157 results
17 September 2025
A security issue was fixed in the Linux kernel.
- Ubuntu 25.04 ,
- 24.04 LTS
CVE ID
16 September 2025
xmltodict could be made to crash or run programs if it received specially crafted input.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
15 September 2025
SQLite could be made to crash or run programs if it received specially crafted input.
- Ubuntu 25.04 ,
- 24.04 LTS
CVE ID
15 September 2025
JSON-XS could be made to crash if it parsed specially crafted JSON.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
15 September 2025
Cpanel-JSON-XS could be made to crash if it parsed specially crafted JSON.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
15 September 2025
Several security issues were fixed in Vim.
- Ubuntu 25.04 ,
- 24.04 LTS
CVE ID
11 September 2025
cipher-base could be made to stall or return incorrect hash values if it received specially crafted input.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS
CVE ID
11 September 2025
Several security issues were fixed in CUPS.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
11 September 2025
Several security issues were fixed in QEMU.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
CVE-2024-3446, CVE-2024-7409, CVE-2024-4467 + 4 others
10 September 2025
libxml2 could be made to crash if it received specially crafted input.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
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