CVE-2025-3757criticalCWE-305

CVE-2025-3757: critical vulnerability in OPKSSH

Authentication Bypass in OpenPubKey

Published

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28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 9.3epss 0.4%
Versions of OpenPubkey library prior to 0.10.0 contained a vulnerability that would allow a specially crafted JWS to bypass signature verification.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:L/SI:L/SA:L/AU:Y
Affected products
OPKSSH · OPKSSH
Related CVEs — OPKSSH

In the same product, most dangerous first.

CVE-2025-4658CRITICALAuthentication Bypass in OPKSSHEPSS 0.3%