OpenSSH vulnerabilities: known CVEs & security history
OpenBSD · Remote access · 50 tracked CVEs · 0 actively exploited · updated November 2026 · what is a CVE? →
This is the full list of known vulnerabilities (CVEs) across all OpenSSH release lines — 50 in total. A CVE here doesn't mean your version is affected — check OpenSSH's current status and the safe version to run.
Known OpenSSH CVEs
Actively-exploited and most-severe first. Open any CVE for full details.
| CVE | Severity | CVSS | EPSS | Year |
|---|---|---|---|---|
| CVE-2023-38408 | critical | 9.8 | 80% | 2023 |
| CVE-2023-28531 | critical | 9.8 | 2% | 2023 |
| CVE-2024-6387 | high | 8.1 | 100% | 2024 |
| CVE-2019-16905 | high | 7.8 | 2% | 2019 |
| CVE-2026-60002 | high | 7.7 | 0% | 2026 |
| CVE-2026-35385 | high | 7.5 | 1% | 2026 |
| CVE-2026-3497 | high | 7.5 | 1% | 2026 |
| CVE-2020-12062 | high | 7.5 | 2% | 2020 |
| CVE-2020-15778 | high | 7.4 | 13% | 2020 |
| CVE-2021-28041 | high | 7.1 | 3% | 2021 |
| CVE-2023-51767 | high | 7 | 1% | 2023 |
| CVE-2021-41617 | high | 7 | 3% | 2021 |
| CVE-2025-26465 | medium | 6.8 | 8% | 2025 |
| CVE-2019-6110 | medium | 6.8 | 21% | 2019 |
| CVE-2019-6109 | medium | 6.8 | 4% | 2019 |
| CVE-2026-106585 | medium | 6.5 | 0% | 2026 |
| CVE-2026-60001 | medium | 6.5 | 0% | 2026 |
| CVE-2023-51385 | medium | 6.5 | 20% | 2023 |
| CVE-2023-25136 | medium | 6.5 | 90% | 2023 |
| CVE-2026-59999 | medium | 5.9 | 0% | 2026 |
| CVE-2025-26466 | medium | 5.9 | 41% | 2025 |
| CVE-2023-48795 | medium | 5.9 | 94% | 2023 |
| CVE-2020-14145 | medium | 5.9 | 2% | 2020 |
| CVE-2019-6111 | medium | 5.9 | 58% | 2019 |
| CVE-2023-51384 | medium | 5.5 | 0% | 2023 |
| CVE-2026-55655 | medium | 5 | 0% | 2026 |
| CVE-2000-0992 | medium | 5 | 6% | 2000 |
| CVE-2026-73282 | medium | 4.8 | 0% | 2026 |
| CVE-2026-59998 | medium | 4.8 | 0% | 2026 |
| CVE-2026-55653 | medium | 4.3 | 1% | 2026 |
| CVE-2025-32728 | medium | 4.3 | 0% | 2025 |
| CVE-2026-106552 | medium | 4.2 | 0% | 2026 |
| CVE-2026-59997 | medium | 4.2 | 0% | 2026 |
| CVE-2026-59996 | medium | 4.2 | 0% | 2026 |
| CVE-2026-59995 | medium | 4.2 | 0% | 2026 |
| CVE-2026-35414 | medium | 4.2 | 0% | 2026 |
| CVE-2026-106582 | low | 3.7 | 0% | 2026 |
| CVE-2026-60000 | low | 3.7 | 1% | 2026 |
| CVE-2026-55654 | low | 3.7 | 1% | 2026 |
| CVE-2026-106587 | low | 3.6 | 0% | 2026 |
| CVE-2026-35386 | low | 3.6 | 0% | 2026 |
| CVE-2026-73281 | low | 3.5 | 0% | 2026 |
| CVE-2026-35387 | low | 3.1 | 0% | 2026 |
| CVE-2026-106583 | low | 2.5 | 0% | 2026 |
| CVE-2026-106586 | low | 2.5 | 0% | 2026 |
| CVE-2026-106584 | low | 2.5 | 0% | 2026 |
| CVE-2026-73283 | low | 2.5 | 0% | 2026 |
| CVE-2026-35388 | low | 2.5 | 0% | 2026 |
| CVE-2026-106555 | low | 2.2 | 0% | 2026 |
| CVE-2026-106553 | low | 2.2 | 0% | 2026 |
Is my OpenSSH version affected?
The list above spans every release. To know whether your version is affected — and the minimum safe version to upgrade to — check it directly.
Check your OpenSSH version → · Monitor OpenSSH for new CVEs →
OpenSSH vulnerabilities — frequently asked
How many known vulnerabilities does OpenSSH have?
IsItPatched tracks 50 CVEs for OpenSSH. 2 are critical-severity and 10 high-severity. These span every release line — what matters is whether the version you run is affected.
Does OpenSSH have any actively-exploited vulnerabilities?
None of OpenSSH's tracked CVEs are currently in CISA's KEV catalog — but new ones can be added at any time, so keep your version current.
What is the most severe OpenSSH vulnerability?
Among tracked issues, CVE-2023-38408 (CRITICAL, CVSS 9.8) ranks highest — a CWE-428 weakness.
Is OpenSSH safe to use?
It depends on the version. The latest supported OpenSSH release clears the known issues; older versions may still be affected. Check the exact version you run for a verdict.
CVE data aggregated from NVD, CISA KEV and EPSS (FIRST.org). Related: OpenSSH security status · OpenSSH end-of-life · actively-exploited CVEs. Always verify against OpenBSD's advisories — see our disclaimer.