CVE-2021-40399: WPS Office

High severity, CVSS 7.8. EPSS: 1.4% chance of exploitation in the next 30 days.

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.

Affected products

• WPS WPS Office: version 11.2.0.10351 only

Published 2022-05-12. Last modified 2026-06-17.