CVE-2025-4658
CRITICAL EPSS 21.2%
Published May 13, 20251y ago · Modified Jun 17, 20262w ago
9.3 CVSS 4.0
Published May 13, 2025 1y ago
Last Modified Jun 17, 2026 2w ago
Description
Versions of OpenPubkey library prior to 0.10.0 contained a vulnerability that would allow a specially crafted JWS to bypass signature verification. As OPKSSH depends on the OpenPubkey library for authentication, this vulnerability in OpenPubkey also applies to OPKSSH versions prior to 0.5.0 and would allow an attacker to bypass OPKSSH authentication.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
21.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 2
CWE-305
CWE-347
Affected Products 2
| Vendor | Product | Version | Range |
|---|---|---|---|
| openpubkey | openpubkey | * | <0.10.0 |
| openpubkey | opkssh | * | <0.5.0 |
References 1
- github.com https://github.com/openpubkey/opkssh
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.