CVE-2025-15536

LOW EPSS 13.7%
Published Jan 18, 20265mo ago · Modified Jun 17, 20262w ago
1.9 CVSS 4.0
Low
Find Similar
Published Jan 18, 2026 5mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
1.9
Exploitability
—
Impact
—
Vector string
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
13.7% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 3

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer Memory Safety
CWE-122
CWE-787 Out-of-bounds Write Memory Safety

Affected Products 1

VendorProductVersionRange
byvoidopen_chinese_convert* ≤1.1.9

References 8

  • github.com https://github.com/BYVoid/OpenCC/
  • github.com https://github.com/BYVoid/OpenCC/commit/345c9a50ab07018f1b4439776bad78a0d40778ec
    Patch
  • github.com https://github.com/BYVoid/OpenCC/issues/997
    ExploitIssue TrackingPatch
  • github.com https://github.com/BYVoid/OpenCC/pull/1005
    Issue TrackingPatch
  • github.com https://github.com/oneafter/1222/blob/main/repro
    Product
  • vuldb.com https://vuldb.com/?ctiid.341708
    Permissions RequiredVDB Entry
  • vuldb.com https://vuldb.com/?id.341708
    Third Party AdvisoryVDB Entry
  • vuldb.com https://vuldb.com/?submit.733347
    ExploitThird Party AdvisoryVDB Entry

Remediation

  • github.com https://github.com/BYVoid/OpenCC/commit/345c9a50ab07018f1b4439776bad78a0d40778ec
    Patch
  • github.com https://github.com/BYVoid/OpenCC/issues/997
    ExploitIssue TrackingPatch
  • github.com https://github.com/BYVoid/OpenCC/pull/1005
    Issue TrackingPatch