CVE-2025-4658 is a critical vulnerability affecting OpenPubkey library versions prior to 0.10.0 and OPKSSH versions prior to 0.5.0. This flaw allows an attacker to bypass signature verification in OpenPubkey and authentication in OPKSSH through a specially crafted JWS. With a CVSS score of 9.8 (Critical), this vulnerability presents a high risk due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.10.0CPE matchmatch criteria | cpe:2.3:a:openpubkey:openpubkey:*:*:*:*:*:*:*:* | ||
< 0.5.0CPE matchmatch criteria | cpe:2.3:a:openpubkey:opkssh:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
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
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.