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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2025-15536 Detail

Description

A weakness has been identified in BYVoid OpenCC up to 1.1.9. This vulnerability affects the function opencc::MaxMatchSegmentation of the file src/MaxMatchSegmentation.cpp. This manipulation causes heap-based buffer overflow. The attack is restricted to local execution. The exploit has been made available to the public and could be used for attacks. Patch name: 345c9a50ab07018f1b4439776bad78a0d40778ec. To fix this issue, it is recommended to deploy a patch.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  VulDB
CVSS-BT 4.8 MEDIUM
Vector:  CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/BYVoid/OpenCC/commit/345c9a50ab07018f1b4439776bad78a0d40778ec VulDB
https://github.com/BYVoid/OpenCC/issues/997 CISA-ADP, VulDB
https://github.com/BYVoid/OpenCC/pull/1005 VulDB
https://github.com/oneafter/1222/blob/main/repro VulDB
https://vuldb.com/?ctiid.341708 VulDB
https://vuldb.com/?id.341708 VulDB
https://vuldb.com/?submit.733347 VulDB

Weakness Enumeration

CWE-ID CWE Name Source
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer VulDB  
CWE-122 Heap-based Buffer Overflow VulDB  

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-15536
NVD Published Date:
01/18/2026
NVD Last Modified:
01/20/2026
Source:
VulDB