CVE-2023-39943: Ashlar Cobalt

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

In Ashlar-Vellum Cobalt versions prior to v12 SP2 Build (1204.200), the affected application lacks proper validation of user-supplied data when parsing XE files. This could lead to an out-of-bounds write. An attacker could leverage this vulnerability to execute arbitrary code in the context of the current process.

Affected products

• Ashlar Cobalt: before 12.4.1204.200 (fixed in 12.4.1204.200)

Published 2025-02-04. Last modified 2026-06-17.