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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1 - 7 of 7 results

USN-7836-1: Bind vulnerabilities

22 October 2025

Several security issues were fixed in Bind.

  • Ubuntu 25.10 ,
  • 25.04 ,
  • 24.04 LTS,
  • 22.04 LTS

CVE ID

CVE-2025-40778, CVE-2025-40780, CVE-2025-8677

USN-7831-1: Erlang vulnerabilities

21 October 2025

Several security issues were fixed in Erlang.

  • 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-2025-48041, CVE-2025-48038, CVE-2025-48040 + 1 other

USN-7828-1: Python LDAP vulnerabilities

20 October 2025

Several security issues were fixed in Python LDAP.

  • Ubuntu 25.10 ,
  • 25.04 ,
  • 24.04 LTS,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS

CVE ID

CVE-2025-61912, CVE-2025-61911

USN-7822-1: .NET vulnerabilities

16 October 2025

Several security issues were fixed in .NET

  • Ubuntu 25.10 ,
  • 25.04 ,
  • 24.04 LTS,
  • 22.04 LTS

CVE ID

CVE-2025-55248, CVE-2025-55315, CVE-2025-55247

USN-7826-1: Samba vulnerabilities

16 October 2025

Several security issues were fixed in Samba.

  • Ubuntu 25.10 ,
  • 25.04 ,
  • 24.04 LTS,
  • 22.04 LTS

CVE ID

CVE-2025-10230, CVE-2025-9640

USN-7824-2: Redict vulnerability

16 October 2025

Redict could be made to crash or run programs if it received specially crafted network traffic from an authenticated user.

  • Ubuntu 25.10 ,
  • 25.04

CVE ID

CVE-2025-49844

USN-7824-1: Redis vulnerability

15 October 2025

Redis could be made to crash or run programs if it received specially crafted network traffic from an authenticated user.

  • Ubuntu 25.10 ,
  • 25.04 ,
  • 24.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2025-49844

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