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.
Search USNs
USN ID, name, description or CVE ID contains
10 - 19 of 10853 results
24 June 2026
Several security issues were fixed in Perl DBI module.
- 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
24 June 2026
Several security issues were fixed in MySQL.
- Ubuntu 20.04 LTS
CVE ID
23 June 2026
libcap could be made to modify capabilities on arbitrary files.
- Ubuntu 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
23 June 2026
Apache MINA could be made to run programs if it received specially crafted network traffic.
- Ubuntu 26.04 LTS,
- 24.04 LTS,
- 22.04 LTS
CVE ID
CVE-2026-47065, CVE-2026-42779, CVE-2024-52046 + 1 other
23 June 2026
LIBNFS could be made to crash or run programs if it connected to a specially crafted NFS server.
- Ubuntu 26.04 LTS,
- 25.10 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
23 June 2026
Several security issues were fixed in LibVNCServer.
- Ubuntu 26.04 LTS,
- 25.10 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
CVE-2020-29260, CVE-2026-32853, CVE-2026-44988 + 1 other
22 June 2026
Several security issues were fixed in Google Guest Agent.
- Ubuntu 26.04 LTS,
- 25.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2026-39831, CVE-2026-39834, CVE-2026-39830 + 1 other
22 June 2026
Several security issues were fixed in libxml2.
- Ubuntu 26.04 LTS,
- 25.10
CVE ID
22 June 2026
Several security issues were fixed in HAProxy.
- Ubuntu 26.04 LTS,
- 25.10 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
22 June 2026
Several security issues were fixed in nginx.
- Ubuntu 26.04 LTS,
- 25.10 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
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