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Vulnerability record · CVE-2021-40399 · published 12 May 2022

CVE-2021-40399: Wps office use after free vulnerability

Wps · Wps Office

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.

7.8 CVSS 3.1 High EPSS 1.3% · top 29.8% CWE-416 · Use after free
7.8CVSS 3.1 base score, v2 6.8
1.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-40399), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.