Exposed IOCTL with Insufficient Access Control in ExpressUpdate Agent for Windows - CVE-2026-8797
Published: June 30, 2026
Vulnerability identifier: #VU135975
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-8797
CWE-ID: CWE-782
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to execute arbitrary code on the target system.
The vulnerability exists due to insufficient access control in the IOCTL. A local user can execute arbitrary code with SYSTEM privilege.
Affected software
ExpressUpdate Agent for Windows
How to mitigate CVE-2026-8797
Install updates from vendor's website.
ExpressUpdate Agent for Windows - update to 3.25