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

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

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