CVEvulnerability

CVE-2021-21958

7.8 HIGH Published 2022-02-16 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2022-02-16
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 3.0 ([email protected])
7.8 HIGH — CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
Weaknesses
CWE-122, CWE-787

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 configurations

• hancom hancom office 2020 11.0.0.2353

Related

Weakness · CWE (2)

  • CWE-122 Heap-based Buffer Overflow weakness
  • CWE-787 Out-of-bounds Write weakness

References