SAP released 20 new and updated security notes on Tuesday, including one that resolves a critical-severity memory corruption vulnerability.
Tracked as CVE-2026-44756 (CVSS score of 10/10), the critical bug is described as a memory corruption issue in Extended Passport (EPP) Processing.
Missing boundary validations during the deserialization of EPP data could trigger unsafe memory behavior during the processing of externally supplied length fields, application security firm Onapsis explains.
Dubbed OVERPASS, the security defect can be exploited by unauthenticated attackers to run arbitrary system commands, recover database credentials and password hashes, read the live sessions of logged-in users, and modify data, including configurations and SAP binaries.
According to Onapsis, the flaw resides in the SAP kernel code and impacts various components, as EPP is used for tracing within multiple SAP applications.
Furthermore, it explains that the vulnerability is triggered as soon as a new user session is opened, from client to server, over several communication protocols, and the vulnerable functionality is implemented by default between ABAP systems.
“Because EPP is processed as the session opens, every SAP control that decides who may do what, including user locks, roles, authorization objects, and logon policies, is evaluated later than the point where the flaw is reached. None of them is in the attacker’s way,” Onapsis explains.