CVE-2022-33896CWE-124

A buffer underflow vulnerability exists in the way Hword of Hancom Office 2020 version 11.0.0.5357 parses XML-based office files

High · published October 7, 2022

CVSS v3.0
7.8
EPSS
1%
Percentile
43.8
In the wild
Unconfirmed
What it is

A buffer underflow vulnerability exists in the way Hword of Hancom Office 2020 version 11.0.0.5357 parses XML-based office files. A specially-crafted malformed file can cause memory corruption by using memory before buffer start, which can lead to code execution. A victim would need to access 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
0.00528 · 43.8th percentile
Weakness
CWE-124 · Buffer Underwrite ('Buffer Underflow')
Published
2022-10-07T15:05Z
EPSS history
Timeline
  • 07 OCT 15:05Z
    A buffer underflow vulnerability exists in the way Hword of Hancom Office 2020 version 11.0.0.5357 parses XML-based office files
    cvelistv5