CVE-2025-42963 CRITICAL

CVE-2025-42963: Insecure Deserialization in SAP NetWeaver Application Server for Java (Log Viewer )

Vendor Sap_Se
Product SAP NetWeaver Application Server for Java (Log Viewer )
Weakness CWE-502 · Unsafe deserialization
Published July 8, 2025
Last update February 26, 2026

CVSS base score

9.1/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

Description

A critical vulnerability in SAP NetWeaver Application server for Java Log Viewer enables authenticated administrator users to exploit unsafe Java object deserialization. Successful exploitation can lead to full operating system compromise, granting attackers complete control over the affected system. This results in a severe impact on the confidentiality, integrity, and availability of the application and host environment.

Key dates

Disclosure timeline

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