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.
Published: 2022-02-16
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-9129 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.
History

Tue, 15 Apr 2025 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Subscriptions

Hancom Hancom Office 2020
cve-icon MITRE

Status: PUBLISHED

Assigner: talos

Published:

Updated: 2025-04-15T19:10:05.119Z

Reserved: 2021-01-04T00:00:00.000Z

Link: CVE-2021-21958

cve-icon Vulnrichment

Updated: 2024-08-03T18:30:23.696Z

cve-icon NVD

Status : Modified

Published: 2022-02-16T17:15:10.297

Modified: 2024-11-21T05:49:19.117

Link: CVE-2021-21958

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses