CVE-2021-40399 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Reference

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1412 https://security.wps.cn/notices/28

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8