Integer Underflow Leads to Out-of-Bounds Access in XChaCha20-Poly1305 Decrypt_MS:CVE-2025-11931

{
    "lastseen": "2025-11-26T01:37:33",
    "description": "",
    "published": "2025-11-25T01:02:10",
    "modified": "2025-11-25T01:02:10",
    "type": "mscve",
    "title": "Integer Underflow Leads to Out-of-Bounds Access in XChaCha20-Poly1305 Decrypt",
    "source": "",
    "references": "",
    "id": "MS:CVE-2025-11931",
    "bulletinFamily": "microsoft",
    "cwe": null,
    "cvelist": [
        "CVE-2025-11931"
    ],
    "sourceData": "",
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    "cvss": {
        "score": 2.1,
        "severity": "LOW",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/SC:L/VI:L/SI:L/VA:N/SA:N",
        "version": "4.0"
    },
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        "confidentialityImpact": "",
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    },
    "href": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-11931",
    "category_name": "News",
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