CVE-2021-21958
7.8
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitability: 1.8 / Impact: 5.9
Source: 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.
Affected (1)
Products: Hancom: Hancom Office 2020
Configuration A
| Vulnerable Software | Affected Versions |
|---|---|
| Version 11.0.0.2353 |
Related CWEs
CWE-122
Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
CWE-787
Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.
References (3)
Source: talos-cna@cisco.com
ExploitThird Party Advisory
Source: nvd@nist.gov
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory
Timeline
No history available yet.