Canonical / Ubuntu Security Advisory archive

215 months of Ubuntu Security Notices indexed by Vulnetix.

Every Ubuntu Security Notice (USN-NNNN-N) across every supported LTS release, plus Livepatch, Snap store advisories, and the broader Canonical portfolio (MAAS, Juju, Multipass, microK8s, LXD, Incus, Charmed Kubernetes). Enriched live with Vulnetix VDB exploit intelligence. Latest month: April 2026 — Canonical Security Advisories · 100 advisories.

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