CVE-2026-20757 — Gallagher / Command Centre Server

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Gallagher / Command Centre Server	affected 0 through 9.00; affected 9.40 before 9.40.1976(MR1); affected 9.30 before 9.30.3382 (MR4); affected 9.20 before 9.20.3783 (MR6); affected 9.10 before 9.10.4647 (MR9)

CWE

CWE-667

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.