BYVoid OpenCC MaxMatchSegmentation.cpp MaxMatchSegmentation heap-based overflow_CVE-2025-15536

{
    "lastseen": "",
    "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.",
    "published": "2026-01-18T09:02:12.026Z",
    "modified": "2026-01-18T09:02:12.026Z",
    "type": "cve",
    "title": "BYVoid OpenCC MaxMatchSegmentation.cpp MaxMatchSegmentation heap-based overflow",
    "source": "VulDB",
    "references": "https://vuldb.com/?id.341708\nhttps://vuldb.com/?ctiid.341708\nhttps://vuldb.com/?submit.733347\nhttps://github.com/BYVoid/OpenCC/issues/997\nhttps://github.com/BYVoid/OpenCC/pull/1005\nhttps://github.com/oneafter/1222/blob/main/repro\nhttps://github.com/BYVoid/OpenCC/commit/345c9a50ab07018f1b4439776bad78a0d40778ec",
    "id": "CVE-2025-15536",
    "bulletinFamily": "",
    "cwe": [
        "CWE-122",
        "CWE-119"
    ],
    "cvelist": null,
    "sourceData": "BYVoid OpenCC 1.1.0\nBYVoid OpenCC 1.1.1\nBYVoid OpenCC 1.1.2\nBYVoid OpenCC 1.1.3\nBYVoid OpenCC 1.1.4\nBYVoid OpenCC 1.1.5\nBYVoid OpenCC 1.1.6\nBYVoid OpenCC 1.1.7\nBYVoid OpenCC 1.1.8\nBYVoid OpenCC 1.1.9",
    "sourceHref": "",
    "cvss": {
        "score": 4.8,
        "severity": "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",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "OpenCC",
    "version": "1.1.0",
    "vendor": "BYVoid",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}