CVE-2025-42959

HIGH EPSS 38.3%

Published Jul 8, 202511mo ago · Modified Jun 17, 20262w ago

8.1 CVSS 3.1

High

Published Jul 8, 2025 11mo ago

Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score

8.1

Exploitability

2.2

Impact

5.9

Vector string

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector Network

Attack Complexity High

Privileges Required None

User Interaction None

Scope Unchanged

Confidentiality High

Integrity High

Availability High

Threat Intelligence

EPSS Exploit Probability

38.3% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-308

References 2

me.sap.com https://me.sap.com/notes/3600846
url.sap https://url.sap/sapsecuritypatchday

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.