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 3003 results
9 June 2026
USN-8414-1 fixed several vulnerabilities in OpenSSL.
- Ubuntu 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2026-45447, CVE-2026-34182, CVE-2026-34180 + 3 others
9 June 2026
Several security issues were fixed in Vim.
- Ubuntu 26.04 LTS,
- 25.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
9 June 2026
uriparser could be made to crash if it received specially crafted input.
- Ubuntu 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
9 June 2026
GDK-PixBuf could be made to crash or run programs if it opened a specially crafted file.
- Ubuntu 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
9 June 2026
Several security issues were fixed in QEMU.
- Ubuntu 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2021-3416, CVE-2020-15469, CVE-2020-1711 + 36 others
9 June 2026
Several security issues were fixed in Lodash.
- Ubuntu 26.04 LTS,
- 25.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2025-13465, CVE-2020-28500, CVE-2026-4800 + 3 others
8 June 2026
Several security issues were fixed in Net::CIDR::Lite.
- Ubuntu 26.04 LTS,
- 25.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
8 June 2026
Several security issues were fixed in Netty.
- Ubuntu 26.04 LTS,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2026-42586, CVE-2026-42579, CVE-2026-42585 + 3 others
8 June 2026
Several security issues were fixed in Netatalk.
- Ubuntu 26.04 LTS,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2026-44051, CVE-2026-44060, CVE-2026-44047 + 7 others
5 June 2026
YARD could be made to expose sensitive information over the network.
- Ubuntu 26.04 LTS,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
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