CVE-2026-35387

low-risk
Published 2026-04-02

OpenSSH before 10.3 can use unintended ECDSA algorithms. Listing of any ECDSA algorithm in PubkeyAcceptedAlgorithms or HostbasedAcceptedAlgorithms is misinterpreted to mean all ECDSA algorithms.

Do I need to act?

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0.03% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.1/10 Low
NETWORK / HIGH complexity
16
/ 100
low-risk
Severity 11/34 · Low
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal