CVE-2021-40399

An exploitable use-after-free vulnerability exists in WPS Spreadsheets ( ET ) as part of WPS Office, version 11.2.0.10351.
A specially-crafted XLS file can cause a use-after-free condition, resulting in remote code execution. An attacker needs to provide a malformed file to the victim to trigger the vulnerability.

Source: CVE-2021-40399