Ubuntu ↗
Summary iPlain-English security verdict for Ubuntu, generated from its current health score, actively-exploited vulnerabilities, and latest supported version.
Ubuntu currently scores 85/100 — good. 25 actively-exploited vulnerabilities (CISA KEV) affect older releases (e.g. CVE-2014-6271) — staying on the latest supported version keeps you clear of them. The latest supported release is 26.04. It's largely safe; apply minor updates as they appear. Note: this product is assessed at the product level on recent (365-day) activity rather than an exact per-version match, so it is never marked a confident "healthy".
Disclosure trend iNew CVEs published for Ubuntu each year (NVD). A higher bar means more disclosures that year — more scrutiny, not necessarily less safe.
2 of its known vulnerabilities are linked to ransomware campaigns (CISA KEV).
Patch priority — what to act on iThe issues to fix first — actively exploited (CISA KEV) first, then by exploitation probability (EPSS), then severity. Each row's "→ fixed in" is the earliest version that patches it; "see advisory" means no fixed version is published.
Most urgent first — actively exploited, then likeliest to be exploited.
CVE-2014-6271 CRITICAL exploited OS command injection EPSS 100% → see advisory CVE-2014-0160 HIGH exploited Out-of-bounds read EPSS 100% → see advisory CVE-2017-12617 HIGH exploited Unrestricted file upload EPSS 100% → see advisory CVE-2014-7169 CRITICAL exploited OS command injection EPSS 100% → see advisory CVE-2013-0422 CRITICAL exploited ransomware Improper access control EPSS 98% → see advisory CVE-2016-3714 HIGH exploited Improper input validation EPSS 97% → see advisory CVE-2011-3544 CRITICAL exploited Improper access control EPSS 97% → see advisory CVE-2010-0840 CRITICAL exploited EPSS 96% → see advisory CVE-2016-3427 CRITICAL exploited Improper access control EPSS 92% → see advisory CVE-2016-8735 CRITICAL exploited EPSS 90% → see advisory CVE-2013-2423 LOW exploited Improper access control EPSS 85% → see advisory CVE-2016-5195 HIGH exploited CWE-362 EPSS 84% → see advisorySee all 2000 known Ubuntu CVEs & security history →
How to patch Ubuntu — step-by-step to the latest secure version →
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Versions & lifecycle iWhen each release line stops receiving security patches (end-of-life). After EOL there are no more fixes — plan upgrades before these dates.
How long each Ubuntu release line is supported — and when it sunsets. Select a line for its full report.
Full Ubuntu end-of-life dates & support timeline →
26.04 latest 26.04 Supported until 2031-04-30security notices → 25.10 latest 25.10 Supported until 2026-07-01security notices →Frequently asked
Is Ubuntu safe and patched?
Ubuntu currently scores 85/100 — good. 25 actively-exploited vulnerabilities (CISA KEV) affect older releases (e.g. CVE-2014-6271) — staying on the latest supported version keeps you clear of them. The latest supported release is 26.04. It's largely safe; apply minor updates as they appear. Note: this product is assessed at the product level on recent (365-day) activity rather than an exact per-version match, so it is never marked a confident "healthy".
What should I do about Ubuntu now?
Upgrade Ubuntu to the latest supported release (26.04) or later, which clears the actively-exploited issues affecting older versions, then confirm against Canonical's official advisory.
When does Ubuntu reach end-of-life?
The latest supported Ubuntu release is 26.04. After end-of-life a release no longer receives security patches.
Which versions of Ubuntu are still receiving security updates?
Supported Ubuntu release lines (latest 26.04): 26.04, 25.10, 24.04, 22.04. End-of-life releases no longer receive security patches.
product-level posture (last 365d); exact per-version verdict pending precise version mapping
Informational only, from public data (NVD · CISA KEV · EPSS · endoflife.date), and can lag or miss vendor-specific fixes. Always confirm against Canonical's official advisory before you patch or upgrade — Ubuntu official site ↗