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.
                
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Affected Vendors & Products
References
        | Link | Providers | 
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-23-1855/ | 
                     | 
            
History
                    Thu, 14 Aug 2025 06:30:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| First Time appeared | 
        
        Hancom
         Hancom office Word  | 
|
| CPEs | cpe:2.3:a:hancom:office_word:11.0.0.6914:*:*:*:*:*:*:* | |
| Vendors & Products | 
        
        Hancom
         Hancom office Word  | 
|
| Metrics | 
        
        cvssV3_1
         
  | 
Status: PUBLISHED
Assigner: zdi
Published: 2024-05-03T02:15:26.147Z
Updated: 2024-08-02T22:40:33.600Z
Reserved: 2023-12-20T20:38:20.871Z
Link: CVE-2023-51598
Updated: 2024-08-02T22:40:33.600Z
Status : Analyzed
Published: 2024-05-03T03:16:20.833
Modified: 2025-08-14T01:44:33.740
Link: CVE-2023-51598
No data.