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.
References (2)
Core 2
Core References
Exploit, Third Party Advisory x_refsource_misc
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1386
Exploit, Third Party Advisory
https://blog.talosintelligence.com/2022/02/vuln-spotlight-.html
Scores
CVSS v3
7.8
EPSS
0.0083
EPSS Percentile
74.6%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-122
CWE-787
Status
published
Products (1)
hancom/hancom_office_2020
11.0.0.2353
Published
Feb 16, 2022
Tracked Since
Feb 18, 2026