SAP NetWeaver App Server ABAP Remote Function Call Auth ByPass
CVE-2026-0509 Published on February 10, 2026
Missing Authorization check in SAP NetWeaver Application Server ABAP and ABAP Platform
SAP NetWeaver Application Server ABAP and ABAP Platform allows an authenticated, low-privileged user to perform background Remote Function Calls without the required S_RFC authorization in certain cases. This can result in a high impact on integrity and availability, and no impact on the confidentiality of the application.
Vulnerability Analysis
CVE-2026-0509 can be exploited with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, a high impact on integrity and availability.
Weakness Type
What is an AuthZ Vulnerability?
The software does not perform an authorization check when an actor attempts to access a resource or perform an action.
CVE-2026-0509 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-0509
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Affected Versions
SAP_SE SAP NetWeaver Application Server ABAP and ABAP Platform:- Version KRNL64NUC 7.22 is affected.
- Version 7.22EXT is affected.
- Version KRNL64UC 7.22 is affected.
- Version 7.53 is affected.
- Version KERNEL 7.22 is affected.
- Version 7.54 is affected.
- Version 7.77 is affected.
- Version 7.89 is affected.
- Version 7.93 is affected.
- Version 9.16 is affected.
- Version 9.18 is affected.
- Version 9.19 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.