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NVD / CVE Program· CNA Gallagher

CVE-2021-23197: Unquoted service path vulnerability in the Gallagher Controller Service allows an unprivileged user to execute arbitrary code as the account…

HighCVSS 7.8 · v3.1—No exploit No fix recorded

Noroxi assessment

Priority: Monitor (action score 31/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.27% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.
  • Severity is disputed: the assigning authority (CNA) scores it 5.2, NVD 7.8.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Unquoted service path vulnerability in the Gallagher Controller Service allows an unprivileged user to execute arbitrary code as the account that runs the Controller Service. This issue affects: Gallagher Command Centre 8.50 versions prior to 8.50.2048 (MR3) ;

Published
Nov 18, 2021
Updated
Jun 16, 2026
EPSS
0.2% · 19th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CNA vs NVD score

NVD
7.8
CNA · Gallagher
5.2
2.6 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2021-23197

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
gallaghercommand centre

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Gallagher). Independent of NVD's CPE analysis and usually ahead of it.

  • Gallagher Command Centre

    • 8.50 and later · before 8.50.2048 (MR3)affected

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • gallagher command centre8.50 and later · before 8.50.2048

Same product

gallagher: all records

Other highest-scoring records for the same primary product.

  • CVE-2020-16098It is possible to enumerate access card credentials via an unauthenticated network connection to the server in versions of Command Centre…
    39Monitor
  • CVE-2019-15294An issue was discovered in Gallagher Command Centre 8.10 before 8.10.1092(MR2).
    39Monitor
  • CVE-2020-16103Type confusion in Gallagher Command Centre Server allows a remote attacker to crash the server or possibly cause remote code execution.
    36Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2021-23167Nov 18, 2021 · Improper certificate validation vulnerability in SMTP Client allows man-in-the-middle attack to retrieve sensitive information from the…
    27Monitor
  • ← EarlierCVE-2021-23193Nov 18, 2021 · Improper privilege validation vulnerability in COM Interface of Gallagher Command Centre Server allows authenticated unprivileged operators…
    26Monitor
  • Later →CVE-2022-26348Jul 6, 2022 · Command Centre Server is vulnerable to SQL Injection via Windows Registry settings for date fields on the server.
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-428 · Unquoted Search Path or Element

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records