Hot Note
Affected system
SAP GUI / Frontend
CVSS
9.0
Component
BC-FES-JAV
Patch Day
2026-09
Released on
2026/09/08
SAP Note
3781729
Workaround
Yes
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Advisory

A note with CVSS 9.0 for component BC-FES-JAV was released by SAP on 08.09.2026. The correction/advisory 3781729 was described with "[CVE-2026-66768] Improper Access Control in SAP NetWeaver (SAP GUI for Java)" and affects the system type SAP GUI / Frontend.

A workaround exists, according to SAP Security Advisory team. It is advisable to implement the correction as none.

The vulnerability addressed is improper access control within SAP GUI / Frontend.

Risk specification

SAP GUI for Java does not properly enforce the trust level policy for certain functions called from a connected backend system. A low-privileged attacker could exploit this vulnerability by manipulating a connected backend system to trigger the affected functionality. This could enable arbitrary command execution on the victim's machine, resulting in a high impact on the confidentiality, integrity, and availability of the affected system.

Solution

The patch provided with this SAP Security Note ensures that SAP GUI for Java properly checks the function against the Trust Level of the respective system. Apply the Support Packages and Patches specified in this SAP Security Note. For additional information, please refer to SAP Note 3801287 "FAQ for SAP Security Note 3781729".  Although an alternative solution exists, it is advisable to apply the correction! This is the workaround, which was suggested by the SAP security experts: "None".

The advisory is valid for

  • BC-FES-JAV 8.10

 

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