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TI-2021-05928 Aliases CVE-2021-23136GHSA-gppj-jgfq-6wcp

Improper authorization in Gallagher Command Centre

Priority LOW 30CWE-285Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-285.

Summary

Improper Authorization vulnerability in Gallagher Command Centre Server allows macro overrides to be performed by an unprivileged Command Centre Operator. 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.

Why it matters now

EPSS 0.00583 48th percentileScored 2026-11-07
Fix Fixed Command Centre (Gallagher): 8.40.1888 (MR3), 8.30.1359 (MR3), 8.20.1259 (MR5)

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
GallagherCommand Centreup to 8.10; 8.40 to before 8.40.1888 (MR3); 8.30 to before 8.30.1359 (MR3); 8.20 to before 8.20.1259 (MR5)8.40.1888 (MR3), 8.30.1359 (MR3), 8.20.1259 (MR5)Patch availableCNA
  • Command Centre VendorGallagher Affected up to 8.10; 8.40 to before 8.40.1888 (MR3); 8.30 to before 8.30.1359 (MR3); 8.20 to before 8.20.1259 (MR5) Fixed in 8.40.1888 (MR3), 8.30.1359 (MR3), 8.20.1259 (MR5) Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:gallagher:command_centre:*:*:*:*:*:*:*:*up to 8.10; 8.20 to before 8.20.1259; 8.30 to before 8.30.1359; 8.40 to before 8.40.1888VulnerableGallagher
  • cpe:2.3:a:gallagher:command_centre:*:*:*:*:*:*:*:* Versions up to 8.10; 8.20 to before 8.20.1259; 8.30 to before 8.30.1359; 8.40 to before 8.40.1888 Vulnerable ·Gallagher

Remediation

  • Fix · CNA Command Centre (Gallagher) Fixed in 8.40.1888 (MR3), 8.30.1359 (MR3), 8.20.1259 (MR5)

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Gallagher Command Centre 8.20.1259 (MR5), 8.30.1359 (MR3), 8.40.1888 (MR3)

    3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2021-05931 Improper authorization in Gallagher Command CentrePriority MEDIUM 44
    • TI-2021-05970 Improper output encoding in Gallagher Command CentrePriority LOW 37
    Show all 3 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-23136
  2. 2026-10-03 Alias added: GHSA-gppj-jgfq-6wcp

References

Advisory 1

  • TI-2021-05931 Improper authorization in Gallagher Command Centre CVSS 3.1CRITICAL 9.9
  • TI-2020-12668 Improper authentication in Gallagher Command Centre CVSS 3.1CRITICAL 9.8
  • TI-2020-12666 Improper authorization in Gallagher Command Centre CVSS 3.1CRITICAL 9.9
  • TI-2019-11404 An issue was discovered in Gallagher Command Centre 8.10 before 8.10.1092(MR2). CVSS 3.0CRITICAL 9.8
  • TI-2021-05986 SQL injection in Gallagher Command Centre CVSS 3.1CRITICAL 9.9
  • TI-2020-12673 Incorrect type conversion in Gallagher Command Centre CVSS 3.1HIGH 8.8
See all 41 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences