Emerging Threat: (CVE-2026-34265) SAP NetWeaver ABAP Memory Corruption via DIAG Protocol Parsing
CVE-2026-34265 is a memory corruption vulnerability in the Application Server ABAP component of SAP NetWeaver and the ABAP Platform. The flaw stems from logical errors in how the SAP kernel parses DIAG protocol messages, the proprietary protocol that carries traffic between the SAP GUI presentation layer and the application server. Malformed input reaching the parser leads to an out-of-bounds write, classified as CWE-787. The vulnerability carries a CVSS v3.1 base score of 9.8 (Critical).