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Unrated severityNVD Advisory· Published Feb 16, 2022· Updated Apr 15, 2025

CVE-2021-21958

CVE-2021-21958

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

2
  • Hancom Office 2020/Hancom Office 2020description
  • Hancom/Office 2020llm-create
    Range: = 11.0.0.2353

Patches

Vulnerability mechanics

References

1

News mentions

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