CyberRota Analysis
This is a high severity vulnerability with a CVSS score of 7.8. It affects Office. Public exploit code or proof-of-concept references have been detected in its references.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Detected Signals
arbitrary code execution code execution
Note: these links are listed for security research and verification purposes only.
CVE
CVE-2021-21958
Severity
HIGH
CVSS
7.8
EPSS
1.10%
Office
Original NVD 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.
Related CVEs
Other vulnerabilities affecting the same vendor(s)