CVE-2023-24590: Gallagher Controller 6000 Firmware

High severity, CVSS 8.8. EPSS: 0.6% chance of exploitation in the next 30 days.

A format string issue in the Controller 6000's optional diagnostic web interface can be used to write/read from memory, and in some instances crash the Controller 6000 leading to a Denial of Service. This issue affects: Gallagher Controller 6000 8.60 prior to vCR8.60.231116a (distributed in 8.60.2550 (MR7)), all versions of 8.50 and prior.

Affected products

• Gallagher Controller 6000 Firmware: up to and including 8.50; from 8.60, before 8.60.231116a (fixed in 8.60.231116a)

Published 2023-12-18. Last modified 2026-06-17.