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CVE-2023-51598

Published: May 3, 2024Updated: Aug 14, 2025 Sources: CVE List NVD BDUCWE-416
NVD MITRE
8.8CVSSHIGH
EPSS Score
0.7%
Top 50.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Hancom Office Word DOC File Parsing Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Hancom Office Word. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of DOC files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-20384.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-416

Affected Products

Hancom OfficeHancom, Inc.
Mixed
Enterprise Software / document-mgmt
OfficeHancom
On-prem
Consumer Software / productivity
office wordhancom
On-prem
Consumer Software / productivity
hancom, inc.commercialEnterprise Softwareaka hancom
hancomcommercialKRConsumer Softwareaka hancom office 2014, hancom office, hancom office 2020

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://www.zerodayinitiative.com/advisories/ZDI-23-1855/
zerodayinitiative.com
https://safe-surf.ru/upload/VULN-new/VULN.2023-12-22.1.pdf
safe-surf.ru
https://safe-surf.ru/specialists/bulletins-nkcki/702958/
safe-surf.ru
and 2 more references View all →

Timeline

Published
May 3, 2024
Last Updated
Aug 14, 2025

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