CVE-2023-6355

Severity: medium (CVSS 6.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-12-18 · updated 2026-06-17
Weakness: CWE-1253

Description

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: from 8.70 before 8.70.231204a; from 8.80 before 8.80.231204a; from 8.90 before 8.90.231204a; from 9.00 before 9.00.231204b — fixed in 8.70.231204a, 8.80.231204a, 8.90.231204a, 9.00.231204b

How to fix

Upgrade to a fixed version: Gallagher Controller 7000 8.70.231204a, 8.80.231204a, 8.90.231204a, 9.00.231204b. Check the vendor advisory for mitigations.

References

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