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 - 10 of 9531 results

USN-7571-1: c3p0 vulnerability

16 June 2025

c3p0 could be made to crash if it opened a specially crafted file.

  • Ubuntu 14.04 LTS

CVE ID

CVE-2019-5427

USN-7555-2: Django vulnerability

16 June 2025

Django could be made to log injection if received specially crafted input.

  • Ubuntu 25.04 ,
  • 24.10 ,
  • 24.04 LTS,
  • 22.04 LTS

USN-7570-1: Python vulnerabilities

16 June 2025

Python could be made to crash or expose sensitive information.

  • Ubuntu 25.04 ,
  • 24.10 ,
  • 24.04 LTS,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2025-1795, CVE-2025-4516

USN-7536-2: cifs-utils regression

16 June 2025

USN-7536-1 introduced a regression in cifs-utils.

  • Ubuntu 25.04 ,
  • 24.10 ,
  • 24.04 LTS,
  • 22.04 LTS,
  • 20.04 LTS

USN-7550-7: Linux kernel (NVIDIA Tegra IGX) vulnerabilities

13 June 2025

Several security issues were fixed in the Linux kernel.

  • Ubuntu 22.04 LTS

CVE ID

CVE-2024-53168, CVE-2024-56551, CVE-2024-56608

USN-7567-1: ModSecurity vulnerabilities

13 June 2025

Several security issues were fixed in ModSecurity.

  • Ubuntu 25.04 ,
  • 24.10 ,
  • 24.04 LTS,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2025-48866, CVE-2025-47947

USN-7566-1: WebKitGTK vulnerabilities

11 June 2025

Several security issues were fixed in WebKitGTK.

  • Ubuntu 25.04 ,
  • 24.10 ,
  • 24.04 LTS,
  • 22.04 LTS

CVE ID

CVE-2025-24223, CVE-2025-31204, CVE-2025-31215 + 3 others

USN-7565-1: libsoup vulnerabilities

11 June 2025

Several security issues were fixed in libsoup.

  • Ubuntu 18.04 LTS,
  • 16.04 LTS

CVE ID

CVE-2025-32050, CVE-2025-2784, CVE-2025-32053 + 3 others

USN-7563-1: .NET vulnerability

10 June 2025

.NET could be made to crash or run programs if it received specially crafted network traffic.

  • Ubuntu 25.04 ,
  • 24.10 ,
  • 24.04 LTS,
  • 22.04 LTS

CVE ID

CVE-2025-30399

USN-7564-1: Samba vulnerability

10 June 2025

Samba could allow unintended access to network services.

  • Ubuntu 25.04

CVE ID

CVE-2025-0620

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