CVE-2023-5770 | Proofpoint Enterprise Protection up to 8.18.6/8.20.0/8.20.2 Email Subject inappropriate encoding for output context

A vulnerability was found in Proofpoint Enterprise Protection up to 8.18.6/8.20.0/8.20.2 and classified as problematic. Affected by this issue is some unknown functionality of the component Email Subject Handler. The manipulation leads to inappropriate encoding for output context.

This vulnerability is handled as CVE-2023-5770. The attack may be launched remotely. There is no exploit available.

It is recommended to apply a patch to fix this issue.