Ubuntu 18.04 Lts (Canonical) - vulnerabilities (CVEs)

6 CVEs, 0 in the last 30 days, 2 known versions, newest CVE from 2026-07-21. Vendor: Canonical.

CVEs of Ubuntu 18.04 Lts

• CVE-2026-15226 - CVSS 8.4 (high), 2026-07-21: A sandbox confinement bypass vulnerability exists in Canonical snapd within its internal execution environment compiler (snap-confine). The default seccomp…
• CVE-2024-5300 - CVSS 5.6 (medium), 2026-07-21: An access control bypass and information disclosure vulnerability exists in the base AppArmor security profile configuration of Canonical snapd. The…
• CVE-2026-12391 - CVSS 5 (medium), 2026-07-16: An insecure symlink following vulnerability exists in Canonical ubuntu-pro-client (formerly ubuntu-advantage-tools) within the pro collect-logs command…
• CVE-2026-11386 - CVSS 9 (critical), 2026-07-16: An input validation and injection vulnerability exists in Canonical ubuntu-pro-client (formerly ubuntu-advantage-tools). The client constructs APT source…
• CVE-2026-9494 - CVSS 5.5 (medium), 2026-07-16: An information disclosure vulnerability exists in Canonical ubuntu-pro-client (formerly ubuntu-advantage-tools). The client validates Ubuntu Pro APT…
• CVE-2026-3888 - CVSS 7.8 (high), 2026-03-17: Local privilege escalation in snapd on Linux allows local attackers to get root privilege by re-creating snap's private /tmp directory when systemd-tmpfiles…