CVE-2023-6355: Gallagher Controller 7000 Firmware

Medium severity, CVSS 6.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Incorrect selection of fuse values in the Controller 7000 platform allows an attacker to bypass some protection mechanisms to enable local debug. This issue affects: Gallagher Controller 7000 9.00 prior to vCR9.00.231204b (distributed in 9.00.1507 (MR1)), 8.90 prior to vCR8.90.231204a (distributed in 8.90.1620 (MR2)), 8.80 prior to vCR8.80.231204a (distributed in 8.80.1369 (MR3)), 8.70 prior to vCR8.70.231204a (distributed in 8.70.2375 (MR5)).

Affected products

• Gallagher Controller 7000 Firmware: from 8.70, before 8.70.231204a (fixed in 8.70.231204a); from 8.80, before 8.80.231204a (fixed in 8.80.231204a); from 8.90, before 8.90.231204a (fixed in 8.90.231204a); from 9.00, before 9.00.231204b (fixed in 9.00.231204b)

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