CVE-2021-23193
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedImproper privilege validation vulnerability in COM Interface of Gallagher Command Centre Server allows authenticated unprivileged operators to retrieve sensitive information from the Command Centre Server. This issue affects: Gallagher Command Centre 8.50 versions prior to 8.50.2048 (MR3) ; 8.40 versions prior to 8.40.2063 (MR4); 8.30 versions prior to 8.30.1454 (MR4) ; 8.20 versions prior to 8.20.1291 (MR6); version 8.10 and prior versions.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceImproper privilege validation in the COM Interface of Gallagher Command Centre Server allows authenticated but unprivileged operators to bypass access controls and retrieve sensitive information from the server. The vulnerability stems from insufficient validation of user privileges before granting access to sensitive data through the COM API.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data<= 8.10>= 8.20, < 8.20.1291>= 8.30, < 8.30.1454>= 8.40, < 8.40.2063>= 8.50, < 8.50.2048CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify Gallagher Command Centre installationLocate the Gallagher Command Centre Server installation or check Windows services for a Gallagher Command Centre serviceAffected if If Gallagher Command Centre Server is present, continue to version check
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Determine installed Command Centre versionCheck the installed version of Gallagher Command Centre - typically found in the server application About section, or by right-clicking the main executable and viewing Properties > Details for the File VersionAffected if Compare the installed version against the affected ranges: <= 8.10; >= 8.20 and < 8.20.1291; >= 8.30 and < 8.30.1454; >= 8.40 and < 8.40.2063; >= 8.50 and < 8.50.2048. If the version falls within any of these ranges, the system is potentially affected.
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Confirm COM Interface is configuredReview the Gallagher Command Centre server configuration to determine if the COM API / COM Interface feature is enabled. This is typically found in the server settings or administration console under integration or API settings.Affected if If the COM Interface feature is enabled on an affected version, the vulnerability is present. If it is disabled, the attack surface is reduced but the unpatched vulnerable code may still exist.
The environment is affected if Gallagher Command Centre Server is installed with the COM Interface enabled and the installed version falls within any of the vulnerable version ranges listed.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped8.20.12918.30.14548.40.2063
Apply the vendor-supplied patches for the relevant version (8.50.2048+, 8.40.2063+, 8.30.1454+, 8.20.1291+) and verify that unprivileged operator accounts can no longer access sensitive information through the COM Interface.
Upgrade to the latest stable Command Centre release (8.50.2048 or later recommended); specific minimum fixed versions: 8.20.1291, 8.30.1454, 8.40.2063, or 8.50.2048 depending on your version branch
- Identify the current installed version of Gallagher Command Centre by accessing the server administration interface or checking system information
- Determine which version branch is currently in use (8.10, 8.20, 8.30, 8.40, or 8.50)
- Review the release notes and upgrade documentation for the target fixed version on security.gallagher.com
- Schedule a maintenance window for the upgrade process
- Create a complete backup of the Command Centre database and configuration
- For 8.10 and earlier: upgrade to Command Centre 8.20.1291 or later, then continue to the latest stable version
- For 8.20.x versions: upgrade to Command Centre 8.20.1291 (MR6) or later
- For 8.30.x versions: upgrade to Command Centre 8.30.1454 (MR4) or later
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation2.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-23193 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2021-23193 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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