CVE-2026-20757

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-20757
StatePUBLISHED
AssignerGallagher
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-03 03:15:54 UTC
Updated2026-08-18 15:54:36 UTC
DescriptionImproper Locking vulnerability (CWE-667) in Gallagher Morpho integration allows a privileged operator to cause a limited denial-of-service in the Command Centre Server. This issue affects Command Centre Server: 9.40 prior to vEL9.40.1976(MR1), 9.30 prior to vEL9.30.3382 (MR4), 9.20 prior to vEL9.20.3783 (MR6), 9.10 prior to vEL9.10.4647 (MR9), all versions of 9.00 and prior.

Risk And Classification

Primary CVSS: v3.1 2.5 LOW from [email protected]

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

Problem Types: CWE-667 | CWE-667 CWE-667 Improper Locking

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary2.5LOWCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
3.1CNACVSS2.5LOWCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Gallagher Command Centre All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Gallagher Command Centre Server affected 9.00 custom Not specified
CNA Gallagher Command Centre Server affected 9.40 9.40.1976(MR1) custom Not specified
CNA Gallagher Command Centre Server affected 9.30 9.30.3382 (MR4) custom Not specified
CNA Gallagher Command Centre Server affected 9.20 9.20.3783 (MR6) custom Not specified
CNA Gallagher Command Centre Server affected 9.10 9.10.4647 (MR9) custom Not specified

References

ReferenceSourceLinkTags
security.gallagher.com/en-NZ/Security-Advisories/CVE-2026-20757 [email protected] security.gallagher.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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