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Canonical Ubuntu 20.04 LTS vulnerabilities

5 known vulnerabilities, 0 confirmed exploited in the wild (CISA KEV), 5 published in the last 12 months.

Check whether your Canonical Ubuntu 20.04 LTS version is affected

Latest Canonical Ubuntu 20.04 LTS vulnerabilities

• CVE-2026-15226 — snapd snap-confine Sandbox Confinement Bypass via Omission of setuid Restriction in Seccomp Templates (CVSS 8.4)
• CVE-2024-5300 — AppArmor Base Profile Misconfiguration in snapd Permits Confined Snaps Unauthorized Access to Hashed Passwords via systemd-userdbd (CVSS 5.6)
• CVE-2026-9494 — ubuntu-pro-client Information Disclosure via Cleartext Bearer Token Exposure in Process Command Line (CVSS 5.5)
• CVE-2026-12391 — ubuntu-pro-client Local Privilege Escalation and Information Disclosure via Symlink Arbitrary File Read in collect-logs (CVSS 5.0)
• CVE-2026-11386 — ubuntu-pro-client Input Validation Vulnerability Leading to Arbitrary APT Directive Injection and Remote Code Execution (CVSS 9.0)