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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5 - 14 of 2630 results

USN-7794-1: Django vulnerabilities

1 October 2025

Several security issues were fixed in Django.

  • Ubuntu 25.04 ,
  • 24.04 LTS,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2025-59681, CVE-2025-59682

USN-7787-1: Libxslt vulnerabilities

30 September 2025

Several security issues were fixed in Libxslt.

  • Ubuntu 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2024-55549, CVE-2025-24855

USN-7786-1: OpenSSL vulnerabilities

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

CVE-2025-9232, CVE-2025-9230, CVE-2025-9231

USN-7783-1: LibTIFF vulnerabilities

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

CVE-2025-9900, CVE-2025-8961, CVE-2025-9165

USN-7015-7: Python 2.7 regression

29 September 2025

USN-7015-4 introduced a regression in Python 2.7

  • Ubuntu 18.04 LTS,
  • 16.04 LTS

CVE ID

CVE-2023-27043

USN-7781-1: Inetutils vulnerabilities

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

USN-7780-1: Qt vulnerabilities

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

USN-7778-1: sha.js vulnerability

25 September 2025

sha.js could be made to consume resources 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

CVE-2025-9288

USN-7773-1: Gnuplot vulnerabilities

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

USN-7755-3: Linux kernel (AWS FIPS) vulnerabilities

24 September 2025

Several security issues were fixed in the Linux kernel.

  • Ubuntu 18.04 LTS

CVE ID

CVE-2025-37752, CVE-2024-57996, CVE-2025-38350 + 7 others

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