CVE-2026-18634

13th percentile - higher than 13% of all known CVEs

An insecure handling of serialized objects vulnerability was found in one of the services of GMS application 9.5.1 (Build 9510.1044) and earlier versions. A local attacker with the ability to interact with the service could exploit this behavior to perform unauthorized actions through the affected component.

The risk for the organization is the potential for unauthorized actions by a local attacker, which could lead to data integrity issues or unintended system changes. However, the attack requires local access to the service, limiting its scope.

It is recommended to immediately update the GMS application to a version newer than 9.5.1 (Build 9510.1044) if a patch is available. Additionally, restrict local access to the service and monitor logs for suspicious activity.