CVE-2021-23204

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-06-11 · updated 2026-06-17
Weakness: CWE-200

Description

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Gallagher Command Centre Server allows OSDP key material to be exposed to Command Centre Operators. This issue affects: Gallagher Command Centre 8.40 versions prior to 8.40.1888 (MR3); 8.30 versions prior to 8.30.1359 (MR3).

Affected products

Gallagher Command Centre: from 8.30 before 8.30.1359; from 8.40 before 8.40.1888 — fixed in 8.30.1359, 8.40.1888

How to fix

Upgrade to a fixed version: Gallagher Command Centre 8.30.1359, 8.40.1888. Check the vendor advisory for mitigations.

References

https://security.gallagher.com/Security-Advisories/CVE-2021-23204
https://security.gallagher.com/Security-Advisories/CVE-2021-23204

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