Vulnerability Details CVE-2021-21958
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.008
EPSS Ranking 72.8%
CVSS Severity
CVSS v3 Score 7.8
CVSS v2 Score 6.8
References
Products affected by CVE-2021-21958
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cpe:2.3:a:hancom:hancom_office_2020:11.0.0.2353