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Vulnerability record · CVE-2021-23205 · published 11 June 2021

CVE-2021-23205: Gallagher command centre vulnerability

Gallagher · Command Centre

Improper Encoding or Escaping in Gallagher Command Centre Server allows a Command Centre Operator to alter the configuration of Controllers and other hardware items beyond their privilege. This issue affects: Gallagher Command Centre 8.40 versions prior to 8.40.1888 (MR3); 8.30 versions prior to 8.30.1359 (MR3); 8.20 versions prior to 8.20.1259 (MR5); version 8.10 and prior versions.

8.1 CVSS 3.1 High EPSS 0.87% · top 42.8% CWE-116 · CWE-116
8.1CVSS 3.1 base score, v2 8.5
0.87%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Improper Encoding or Escaping in Gallagher Command Centre Server allows a Command Centre Operator to alter the configuration of Controllers and other hardware items beyond their privilege. This issue affects: Gallagher Command Centre 8.40 versions prior to 8.40.1888 (MR3); 8.30 versions prior to 8.30.1359 (MR3); 8.20 versions prior to 8.20.1259 (MR5); version 8.10 and prior versions.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://security.gallagher.com/Security-Advisories/CVE-2021-23205 Vendor Advisory
https://security.gallagher.com/Security-Advisories/CVE-2021-23205 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2020-16098Gallagher command centre improper authentication vulnerabilityIt is possible to enumerate access card credentials via an unauthenticated network connection to the server in versions of Command Centre v8.20 prior…EPSS 1.1%9.8CVE-2019-15294Gallagher command centre sensitive information in log file vulnerabilityAn issue was discovered in Gallagher Command Centre 8.10 before 8.10.1092(MR2). Upon an upgrade, if a custom service account is in use and the visito…EPSS 1.2%8.8CVE-2021-23140Gallagher command centre improper authorization vulnerabilityImproper Authorization vulnerability in Gallagher Command Centre Server allows command line macros to be modified by an unauthorised Command Centre O…EPSS 0.85%8.8CVE-2020-16103Gallagher command centre type confusion vulnerabilityType confusion in Gallagher Command Centre Server allows a remote attacker to crash the server or possibly cause remote code execution. This issue af…EPSS 2.3%8.6CVE-2026-25193Gallagher active directory sync sensitive information in log file vulnerabilityInsertion of Sensitive Information into Log File (CWE-532) in some Command Centre Service installers could lead to Service Account credentials exposu…EPSS 0.14%8.2CVE-2020-16102Gallagher command centre improper authentication vulnerabilityImproper Authentication vulnerability in Gallagher Command Centre Server allows an unauthenticated remote attacker to create items with invalid confi…EPSS 1.0%8.1CVE-2023-23570Gallagher command centre vulnerabilityClient-Side enforcement of Server-Side security for the Command Centre server could be bypassed and lead to invalid configuration with undefined beha…EPSS 0.67%7.8CVE-2021-23197Gallagher command centre unquoted search path vulnerabilityUnquoted service path vulnerability in the Gallagher Controller Service allows an unprivileged user to execute arbitrary code as the account that run…EPSS 0.27%

Source: NIST National Vulnerability Database (record CVE-2021-23205), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.