CVE-2025-42959 HIGH

CVE-2025-42959: Missing Authentication check after implementation of SAP Security Note 3007182 and 3537476

Vendor Sap_Se
Product SAP NetWeaver ABAP Server and ABAP Platform
Weakness CWE-308
Published July 8, 2025
Last update February 26, 2026

CVSS base score

8.1/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

July 8, 2025 CVE published
February 26, 2026 Record updated