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CVE-2023-50235

Published: May 3, 2024Updated: Aug 14, 2025 Sources: CVE List NVD BDUCWE-121
NVD MITRE
7.8CVSSHIGH
EPSS Score
0.4%
Top 69.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Hancom Office Show PPT File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Hancom Office Show. 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 PPT files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-20387.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
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-121CWE-787

Affected Products

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

Exploitability

Official Patch Available
No detection template yetWe can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
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References

https://www.zerodayinitiative.com/advisories/ZDI-23-1857/
zerodayinitiative.com
https://www.zerodayinitiative.com/advisories/ZDI-23-1857/
zerodayinitiative.com
https://safe-surf.ru/upload/VULN-new/VULN.2023-12-22.1.pdf
safe-surf.ru
and 1 more references View all →

Timeline

Published
May 3, 2024
Last Updated
Aug 14, 2025

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