# CVE-2025-3757

## Summary

- **CVE ID:** CVE-2025-3757
- **Severity:** CRITICAL
- **CVSS Score:** 9.3 (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)
- **CWE:** CWE-305
- **Published:** May 13, 2025
- **Last Modified:** Mar 12, 2026

## Description

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

## Affected Products

- OPKSSH — OPKSSH (Openpubkey)

## References

- [CNA](https://github.com/openpubkey/openpubkey)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.43%
- **EPSS Percentile:** 35.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._