CVE-2021-21958CWE-122

A heap-based buffer overflow vulnerability exists in the Hword HwordApp.dll functionality of Hancom Office 2020 11.0.0.2353

High · published February 16, 2022

CVSS v3.0
7.8
EPSS
1%
Percentile
65.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.0
7.8 · HIGH
Vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01100 · 65.4th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2022-02-16T16:38Z
EPSS history
Timeline
  • 16 FEB 16:38Z
    A heap-based buffer overflow vulnerability exists in the Hword HwordApp.dll functionality of Hancom Office 2020 11.0.0.2353
    cvelistv5