What is CVE-2026-20757?

CVE-2026-20757 is a low-severity vulnerability in Gallagher Command Centre Server, classified under Improper Locking. CVSS score: 2.5/10. Published 2026-03-03.

How severe is CVE-2026-20757?

Low severity. CVSS v3 base score is 2.5 out of 10.

Vulnerability in Gallagher Command Centre Server

CVE-2026-20757

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 vEL9.40.1…

EPSS: 0.000 (3.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 2.5 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L.

Affected products

Gallagher Command Centre Server — versions 0, 9.40, 9.30

Weakness classification (CWE)

CWE-667 — Improper Locking

References

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

Frequently asked questions

What is CVE-2026-20757?: CVE-2026-20757 is a low-severity vulnerability in Gallagher Command Centre Server, classified under Improper Locking. CVSS score: 2.5/10. Published 2026-03-03.
How severe is CVE-2026-20757?: Low severity. CVSS v3 base score is 2.5 out of 10.