Heap-based Buffer Overflow Affecting opencc package, versions <1.2.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published2 Apr 2026
- disclosed18 Jan 2026
- creditUnknown
Introduced: 18 Jan 2026
CVE-2025-15536 (opens in a new tab)How to fix?
Upgrade OpenCC to version 1.2.0 or higher.
Overview
Affected versions of this package are vulnerable to Heap-based Buffer Overflow via the opencc::MaxMatchSegmentation() and Conversion::Convert(const char*) functions. An attacker can achieve unauthorized access to memory and potentially execute arbitrary code by providing specially crafted input to the affected process.