SAP’s November 2026 Security Patch Day addresses multiple critical vulnerabilities affecting SAP NetWeaver, ABAP Platform, SAP Gateway and Web Dispatcher. Four reported vulnerabilities carry the maximum CVSS severity score of 10.0, potentially allowing unauthenticated attackers to bypass authentication, execute malicious code or compromise enterprise systems. These security flaws pose significant risks to organizations relying on SAP for financial operations, manufacturing, supply chains and other business-critical services.
CRITICAL SAP VULNERABILITIES DISCLOSED
The November security release identifies four maximum-severity vulnerabilities requiring urgent attention:
- CVE-2026-120017 (CVSS 10.0): An authentication bypass vulnerability in SAP NetWeaver Application Server ABAP and ABAP Platform that could allow attackers to impersonate privileged users and compromise affected systems.
- CVE-2026-76964 (CVSS 10.0): A memory-corruption vulnerability in SAP NetWeaver’s Internet Communication Manager that could enable unauthenticated remote code execution.
- CVE-2026-89126 (CVSS 10.0): A vulnerability in SAP Web Dispatcher involving improper network-input validation that could allow remote code execution and complete system compromise.
- CVE-2026-89103 (CVSS 10.0): An access-control vulnerability in SAP Gateway that could allow unauthenticated attackers to perform unauthorized actions through overly permissive default configurations.
SAP ADMINISTRATORS URGED TO PRIORITIZE PATCHING
Organizations should immediately identify affected SAP installations, apply applicable vendor security patches and restrict unnecessary network access to vulnerable services. Security teams should review authentication activity, privileged accounts, network traffic and system logs for suspicious behavior while strengthening network segmentation and monitoring. Although the reviewed disclosures do not confirm active exploitation, the potential for unauthenticated attacks and complete system compromise makes these vulnerabilities a significant enterprise cybersecurity concern. SAP administrators should prioritize exposed infrastructure and verify that all applicable security corrections have been successfully deployed.