TI-2026-16799 Aliases CVE-2026-20757 GHSA-v28g-2c4f-rjxr

Improper Locking vulnerability (CWE-667) in Gallagher Morpho integration allows a…

LOW 11CWE-667Published 2026-03-03 · Updated 2026-03-03

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: High
Impact type: —
Confidentiality · integrity · availability: None · None · Low
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

Improper 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00077 0th percentileScored 2026-11-07

Fix Fixed Command Centre Server (Gallagher): 9.40.1976(MR1), 9.30.3382 (MR4), 9.20.3783 (MR6) +1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Gallagher	Command Centre Server	up to 9.00; 9.40 to before 9.40.1976(MR1); 9.30 to before 9.30.3382 (MR4); 9.20 to before 9.20.3783 (MR6); 9.10 to before 9.10.4647 (MR9)	9.40.1976(MR1), 9.30.3382 (MR4), 9.20.3783 (MR6), 9.10.4647 (MR9)	Patch available	CNA

Command Centre Server VendorGallagher Affected up to 9.00; 9.40 to before 9.40.1976(MR1); 9.30 to before 9.30.3382 (MR4); 9.20 to before 9.20.3783 (MR6); 9.10 to before 9.10.4647 (MR9) Fixed in 9.40.1976(MR1), 9.30.3382 (MR4), 9.20.3783 (MR6), 9.10.4647 (MR9) Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:gallagher:command_centre::::::::	before 9.10.4647; 9.20.1043 to before 9.20.3783; 9.30.1594 to before 9.30.3382; 9.40.1359 to before 9.40.1976	Vulnerable	Gallagher

cpe:2.3:a:gallagher:command_centre:*:*:*:*:*:*:*:* Versions before 9.10.4647; 9.20.1043 to before 9.20.3783; 9.30.1594 to before 9.30.3382; 9.40.1359 to before 9.40.1976 Vulnerable ·Gallagher

Remediation

Fix · CNA Command Centre Server (Gallagher) Fixed in 9.40.1976(MR1), 9.30.3382 (MR4), 9.20.3783 (MR6), 9.10.4647 (MR9)

Timeline

2026-10-02 Threatist record created from CVE-2026-20757
2026-10-03 Alias added: GHSA-v28g-2c4f-rjxr

References

Advisory 1

https://security.gallagher.com/en-NZ/Security-Advisories/CVE-2026-20757

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