It is possible to enumerate access card credentials via an unauthenticated network connection to the server in versions of Command Centre v8.20 prior to v8.20.1166(MR3), versions of 8.10 prior to v8.10.1211(MR5), versions of 8.00 prior to v8.00.1228(MR6), all versions of 7.90 and earlier. These credentials can then be used to encode low security cards to be used by the system where insecure card technologies are supported.

On controllers running versions of v8.20 prior to vCR8.20.200221b (distributed in v8.20.1093(MR2)), v8.10 prior to vGR8.10.179 (distributed in v8.10.1211(MR5)), v8.00 prior to vGR8.00.165 (Distributed in v8.00.1228(MR6)), v7.90 prior to vGR7.90.165 (distributed in v7.90.1038(MRX)), v7.80 or earlier, It is possible to retrieve site keys used for securing MIFARE Plus and Desfire using debug ports on T Series readers.

In Gallagher Command Centre versions 8.10 prior to 8.10.1134(MR4), 8.00 prior to 8.00.1161(MR5), 7.90 prior to 7.90.991(MR5), 7.80 prior to 7.80.960(MR2), 7.70 and earlier, any operator account has access to all data that would be replicated if the system were to be (or is) attached to a multi-server environment. This can include plain text credentials for DVR systems and card details used for physical access/alarm/perimeter components.

An issue was discovered in Gallagher Command Centre 7.x before 7.90.991(MR5), 8.00 before 8.00.1161(MR5), and 8.10 before 8.10.1134(MR4). External system configuration data (used for third party integrations such as DVR systems) were logged in the Command Centre event trail. Any authenticated operator with the 'view events' privilege could see the full configuration, including cleartext usernames and passwords, under the event details of a Modified DVR System event.

In Gallagher Command Centre Server v8.10 prior to v8.10.1134(MR4), v8.00 prior to v8.00.1161(MR5), v7.90 prior to v7.90.991(MR5), v7.80 prior to v7.80.960(MR2) and v7.70 or earlier, an authenticated user connecting to OPCUA can view all data that would be replicated in a multi-server setup without privilege checks being applied.

In Gallagher Command Centre Server versions of v8.10 prior to v8.10.1134(MR4), v8.00 prior to v8.00.1161(MR5), v7.90 prior to v7.90.991(MR5), v7.80 prior to v7.80.960(MR2) and v7.70 or earlier, an unprivileged but authenticated user is able to perform a backup of the Command Centre databases.

Gallagher Command Centre before 7.80.939, 7.90.x before 7.90.961, and 8.x before 8.00.1128 allows arbitrary event creation and information disclosure via the FT Command Centre Service and FT Controller Service services.