PT-2026-31360

Summary OpenCC versions before 1.2.0 contain two CWE-125: Out-of-bounds Read issues caused by length validation failures in UTF-8 processing. When handling malformed or truncated UTF-8 input, OpenCC trusted derived length values without enforcing the invariant that processed length must not excee...

CVE-2025-15536

A flaw was found in BYVoid OpenCC. This vulnerability involves a heap-based buffer overflow, a type of memory corruption, within the MaxMatchSegmentation function. A local attacker can exploit this by providing specially crafted input, which may lead to information disclosure, denial of service, ...

Heap-based Buffer Overflow

Overview Affected versions of this package are vulnerable to Heap-based Buffer Overflow via the opencc::MaxMatchSegmentation and Conversion::Convertconst char functions. An attacker can achieve unauthorized access to memory and potentially execute arbitrary code by providing specially crafted inp...

AZL-74768 CVE-2025-15536 affecting package opencc 1.1.1-3

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...

CVE-2025-15536

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...

UBUNTU-CVE-2025-15536

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...

CVE-2025-15536

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...

CVE-2025-15536

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...

CVE-2025-15536

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...

CVE-2025-15536: Heap-based Buffer Overflow

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...

PT-2026-3384

Name of the Vulnerable Software and Affected Versions BYVoid OpenCC versions through 1.1.9 Description A flaw exists in BYVoid OpenCC that could allow for local code execution. This issue stems from a heap-based buffer overflow within the opencc::MaxMatchSegmentation function located in the...