A cross-site request forgery vulnerability in Lenovo Service Bridge before version 4 could be exploited by an attacker with access to the DHCP server used by the system where LSB is installed.

In Lenovo Service Bridge before version 4, a bug found in the signature verification logic of the code signing certificate could be exploited by an attacker to insert a forged code signing certificate.

In Lenovo Service Bridge before version 4, an insecure HTTP connection is used by LSB to send system serial number, machine type and model and product name to Lenovo's servers.

In Lenovo Service Bridge before version 4, a user with local privileges on a system could execute code with administrative privileges.