8.8
CWE
416
Advisory Published
Updated

CVE-2021-40399: Use After Free

First published: Thu May 12 2022(Updated: )

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.

Credit: talos-cna@cisco.com

Affected SoftwareAffected VersionHow to fix
WPS Office=11.2.0.10351

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Frequently Asked Questions

  • What is the severity of CVE-2021-40399?

    CVE-2021-40399 has been rated as a critical vulnerability due to its potential for remote code execution.

  • How do I fix CVE-2021-40399?

    To fix CVE-2021-40399, update WPS Office to version 11.2.0.10352 or later.

  • What impact does CVE-2021-40399 have on my system?

    CVE-2021-40399 can lead to remote code execution, allowing attackers to execute arbitrary code on your system.

  • What types of files can exploit CVE-2021-40399?

    CVE-2021-40399 can be exploited using specially-crafted XLS files.

  • Who is affected by CVE-2021-40399?

    Users of WPS Office version 11.2.0.10351 are affected by CVE-2021-40399.

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