ByteOS Network

NVD Vulnerability Details :

CVE-2021-21958

Analyzed

Source-talos-cna@cisco.com

Published At-16 Feb, 2022 | 17:15

Updated At-12 May, 2022 | 20:03

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.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Primary	3.1	7.8	HIGH	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Secondary	3.0	7.8	HIGH	CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary	2.0	6.8	MEDIUM	AV:N/AC:M/Au:N/C:P/I:P/A:P

CPE Matches

hancom>>hancom_office_2020>>11.0.0.2353

cpe:2.3:a:hancom:hancom_office_2020:11.0.0.2353:*:*:*:*:*:*:*

Weaknesses

CWE ID	Type	Source
CWE-787	Primary	nvd@nist.gov
CWE-122	Secondary	talos-cna@cisco.com

References

Hyperlink	Source	Resource
https://blog.talosintelligence.com/2022/02/vuln-spotlight-.html	nvd@nist.gov	Exploit Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1386	talos-cna@cisco.com	Exploit Third Party Advisory

CISA Catalog

Metrics

CPE Matches

Weaknesses

Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References

Change History