ARC Informatique PcVue prior to version 12.0.17 is vulnerable to a denial-of-service attack due to the ability of an unauthorized user to modify information used to validate messages sent by legitimate web clients. This issue also affects third-party systems based on the Web Services Toolkit.

A Denial Of Service vulnerability exists in PcVue from version 8.10 onward, due to the ability for a non-authorized user to modify information used to validate messages sent by legitimate web clients.