CVE-2026-20757

Name of the Vulnerable Software and Affected Versions Gallagher Command Centre Server versions prior to 9.40.1976 (MR1) Gallagher Command Centre Server versions prior to 9.30.3382 (MR4) Gallagher Command Centre Server versions prior to 9.20.3783 (MR6) Gallagher Command Centre Server versions prior to 9.10.4647 (MR9) Gallagher Command Centre Server versions 9.00 and prior

Description An improper locking issue exists in the Gallagher Morpho integration. A privileged operator can trigger a limited denial-of-service condition in the Command Centre Server.

Recommendations Update Gallagher Command Centre Server to version 9.40.1976 (MR1) or later. Update Gallagher Command Centre Server to version 9.30.3382 (MR4) or later. Update Gallagher Command Centre Server to version 9.20.3783 (MR6) or later. Update Gallagher Command Centre Server to version 9.10.4647 (MR9) or later.