Vulnerability · Published Sep 8, 2026 · Assigned by sap

CVE-2026-66768Improper Access Control in SAP NetWeaver (SAP GUI for Java)

Critical 9.0

In plain English

A critical-severity security flaw in SAP NetWeaver (SAP GUI for Java) from SAP_SE. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).

Severity (CVSS 3.1)9.0Critical

Exploit odds (30 days)0.6%top 50.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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

Affected products (as reported)

Vendor	Product	Versions
SAP_SE	SAP NetWeaver (SAP GUI for Java)	BC-FES-JAV 8.10

Weakness: CWE-807 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

In plain English

Official description

Affected products (as reported)

References