VULNERABILITY INTELLIGENCE
CVE-2025-42959
CVSS score8.1 HIGH
EPSS probability0.56%
CISA KEVNot currently listed
Published2025-07-08
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
An unauthenticated attacker may exploit a scenario where a Hashed Message Authentication Code (HMAC) credential, extracted from a system missing specific security patches, is reused in a replay attack against a different system. Even if the target system is fully patched, successful exploitation could result in complete system compromise, affecting confidentiality, integrity, and availability.
Weakness classification
- CWE-308: Use of Single-factor Authentication