// #code-integrity

SAP April 2026 Patch Day: CVE-2026-34256 ABAP Code-Overwrite Lets Authenticated Attacker Sabotage Core ERP Functions

SAP's April 2026 Security Patch Day includes a fix for CVE-2026-34256, an ABAP code-overwrite vulnerability rated CVSS 7.1 that allows an authenticated attacker with low-privilege access to modify executable ABAP programme objects, potentially corrupting core business logic in SAP ERP, S/4HANA, and BW systems. The flaw requires no special administrative roles and affects all SAP NetWeaver ABAP Server releases through the current patched version.