Security Advisory

CVE-2021-21958

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2022-02-16 16:38:31

Last updated 2025-04-15 19:10:05

Assigner talos

State PUBLISHED

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.

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