In April 2026, the CERT‑FR identified several vulnerabilities in the Linux kernel used by Ubuntu. These flaws could enable attackers to execute arbitrary code, elevate privileges, and compromise data confidentiality and integrity. Affected releases include Ubuntu 14.04 ESM, 16.04 ESM, 18.04 ESM, 22.04 LTS, 24.04 LTS and 25.10. The report references multiple Ubuntu Security Notices (USN‑8094‑5 to USN‑8149‑1) and CVE identifiers such as CVE‑2021‑47142 and CVE‑2025‑22799. Users are advised to consult the linked security notices for patch information and apply updates promptly. This alert was issued on 3 April 2026.
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