Summary iPlain-English security verdict for etcd, generated from its current health score, actively-exploited vulnerabilities, and latest supported version.
etcd currently scores 100/100 — healthy. No tracked vulnerabilities are currently known to be exploited in the wild. The latest supported release is 3.6.12. It's on the latest patch with no significant known issues — keep it current.
Disclosure trend iNew CVEs published for etcd each year (NVD). A higher bar means more disclosures that year — more scrutiny, not necessarily less safe.
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-2021-28235 CRITICAL Improper authentication EPSS 2% → see advisoryGet alerted about etcd
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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 etcd release line is supported — and when it sunsets. Select a line for its full report.
Full etcd end-of-life dates & support timeline →
3.6 latest 3.6.12 Supported 3.6.12 → 3.5 latest 3.5.31 Supported 3.5.31 → 3.4 latest 3.4.45 End of life ended 2025-05-153.4.45 → 3.3 latest 3.3.27 End of life ended 2021-10-153.3.27 → 3.2 latest 3.2.32 End of life ended 2021-03-283.2.32 → 3.1 latest 3.1.20 End of life ended 2018-10-103.1.20 → 3.0 latest 3.0.17 End of life ended 2017-01-203.0.17 → See all upcoming end-of-life dates →Frequently asked
Is etcd safe and patched?
etcd currently scores 100/100 — healthy. No tracked vulnerabilities are currently known to be exploited in the wild. The latest supported release is 3.6.12. It's on the latest patch with no significant known issues — keep it current.
What should I do about etcd now?
Upgrade etcd to the latest supported release (3.6.12) or later and apply available security updates, then confirm against CNCF's official advisory.
When does etcd reach end-of-life?
The latest supported etcd release is 3.6.12. After end-of-life a release no longer receives security patches.
Which versions of etcd are still receiving security updates?
Supported etcd release lines (latest 3.6.12): 3.6, 3.5. End-of-life releases no longer receive security patches.
Informational only, from public data (NVD · CISA KEV · EPSS · endoflife.date), and can lag or miss vendor-specific fixes. Always confirm against CNCF's official advisory before you patch or upgrade — etcd official site ↗