Information disclosure in Gallagher Command Centre
Priority LOW 36CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure, Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200 and CWE-862.
Summary
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).
Why it matters now
EPSS 0.00698 53rd percentileScored 2026-11-07
Fix Fixed Command Centre (Gallagher): 8.40.1888 (MR3), 8.30.1359 (MR3)
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Gallagher | Command Centre | 8.40 to before 8.40.1888 (MR3); 8.30 to before 8.30.1359 (MR3) | 8.40.1888 (MR3), 8.30.1359 (MR3) | Patch available | CNA |
- Command Centre VendorGallagher Affected 8.40 to before 8.40.1888 (MR3); 8.30 to before 8.30.1359 (MR3) Fixed in 8.40.1888 (MR3), 8.30.1359 (MR3) Patch available CNA
Remediation
- Fix · CNA Command Centre (Gallagher) Fixed in 8.40.1888 (MR3), 8.30.1359 (MR3)
Timeline
- 2026-10-02 Threatist record created from CVE-2021-23204
- 2026-10-03 Alias added: GHSA-6vpq-rp42-rr52
References
More Gallagher Command Centre vulnerabilities
- 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
Sources
- CVE-2021-23204 · CVE Program
- CVE-2021-23204 · NVD
- FIRST EPSS
- GHSA-6vpq-rp42-rr52 · GitHub Advisory Database · CC BY 4.0
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