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
111 - 120 of 2886 results
30 September 2025
Several security issues were fixed in OpenSSL.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
29 September 2025
Several security issues were fixed in LibTIFF.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
29 September 2025
USN-7015-4 introduced a regression in Python 2.7
- Ubuntu 18.04 LTS,
- 16.04 LTS
CVE ID
28 September 2025
Several security issues were fixed in Inetutils.
- Ubuntu 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2022-39028, CVE-2020-10188, CVE-2019-0053 + 1 other
28 September 2025
Several security issues were fixed in Qt.
- Ubuntu 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2023-24607, CVE-2023-33285, CVE-2023-32762 + 1 other
25 September 2025
Several security issues were fixed in Gnuplot.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2025-31179, CVE-2025-31181, CVE-2025-31176 + 4 others
21 September 2025
Kea DHCP could be made to crash if it received specially crafted network traffic.
- Ubuntu 18.04 LTS,
- 16.04 LTS
CVE ID
18 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
CVE-2025-55154, CVE-2025-57807, CVE-2025-55160 + 1 other
17 September 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2024-53130, CVE-2024-50051, CVE-2024-50202 + 7 others
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
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