CVE-2021-21958

High

Description

A heap-based buffer overflow vulnerability exists in the Hword HwordApp.dll functionality of Hancom Office 2020 11.0.0.2353. A specially-crafted malformed file can lead to memory corruption and potential arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.

SeverityHigh
CVSS7.8
Exploit probability—
ProductHancom Office
PublishedFeb 16, 2022
First seenFeb 16, 2022
Weakness typeCWE-122CWE-122

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
hancom hancom_office_202011.0.0.2353—

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CVE-2021-21958 · Hancom Office · Dark Radar