by Kastro
Paper/Archive/CVE-2025-3757

CVE-2025-3757

OPKSSH OPKSSH — Authentication Bypass in OpenPubKey

EPSS 0.4%CVSS 9.8
critical.is priorityof 100
37
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 37.0.370 × 207.4No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

Versions of OpenPubkey library prior to 0.10.0 contained a vulnerability that would allow a specially crafted JWS to bypass signature verification.

Affected

ProductAffectedFixed inSource
OPKSSHOpenpubkey – 0.9.0–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
cloudflare (CNA)9.3CVSS: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
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refgithub.com/openpubkey/openpubkey