CVE-2026-34265 Memory Corruption vulnerability in Application Server ABAP for SAP NetWeaver and ABAP Platform

Critical 9.8 Published Updated

Unauthenticated attackers can exploit memory corruption in SAP NetWeaver ABAP to disclose sensitive information or crash the system.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-34265?

CVE-2026-34265 is a critical memory corruption vulnerability in SAP_SE SAP NetWeaver and ABAP Platform, published on 11 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

SAP NetWeaver Application Server ABAP allows an unauthenticated attacker to exploit logical errors in DIAG protocol parsing, resulting in memory corruption. This vulnerability could potentially disclose sensitive system information or crash the system, leading to a high impact on the confidentiality, integrity, and availability of the application.

Weakness: CWE-787

Which versions are affected by CVE-2026-34265?

How do I fix CVE-2026-34265?

No fix has been published for CVE-2026-34265 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-34265 being exploited?

There is no known exploitation of CVE-2026-34265 in the wild and no public exploit code.

Sources

Also known as GHSA-f774-9w9m-r939.

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