CVE-2026-76967: Insecure Deserialization in SAP NetWeaver Business Client
SAP NetWeaver Business Client does not perform sufficient validation when processing certain locally stored data during application startup. An attacker with low privileges on the local system could replace this data with specially crafted content. When the application is next launched, the crafted content is processed and could lead to arbitrary code execution in the context of the user. This results in a high impact on confidentiality, integrity and availability of the application.
Affected Software
Event History
Frequently Asked Questions
Who is exposed to this issue?
Systems running SAP NetWeaver Business Client are exposed when a low-privileged local attacker can modify the locally stored data that the application processes at startup. The resulting code execution occurs in the context of the user who launches the application.
What must an attacker do to exploit it?
The attacker needs low-privileged access to the local system and must replace certain locally stored data with specially crafted content. Exploitation is triggered when SAP NetWeaver Business Client is launched and processes that content.
Is user interaction required for exploitation?
No separate user interaction is required by the vulnerability. The malicious content is processed during the application's next startup.