Cache poisoning due to weak PRNG_CVE-2025-40780

{
    "lastseen": "",
    "description": "In specific circumstances, due to a weakness in the Pseudo Random Number Generator (PRNG) that is used, it is possible for an attacker to predict the source port and query ID that BIND will use.\nThis issue affects BIND 9 versions 9.16.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.16.8-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1.",
    "published": "2025-10-22T15:48:27.146Z",
    "modified": "2025-10-22T17:27:49.476Z",
    "type": "cve",
    "title": "Cache poisoning due to weak PRNG",
    "source": "isc",
    "references": "https://kb.isc.org/docs/cve-2025-40780",
    "id": "CVE-2025-40780",
    "bulletinFamily": "",
    "cwe": [
        "CWE-341"
    ],
    "cvelist": null,
    "sourceData": "ISC BIND 9 9.16.0\nISC BIND 9 9.18.0\nISC BIND 9 9.20.0\nISC BIND 9 9.21.0\nISC BIND 9 9.16.8-S1\nISC BIND 9 9.18.11-S1\nISC BIND 9 9.20.9-S1",
    "sourceHref": "",
    "cvss": {
        "score": 8.6,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N",
        "version": "3.1"
    },
    "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": "BIND 9",
    "version": "9.16.0",
    "vendor": "ISC",
    "ai_description": "Cache poisoning vulnerability due to weak PRNG in BIND 9",
    "ai_severity": "High",
    "ai_vendor": "ISC",
    "ai_product": "BIND 9",
    "ai_version": "9.16.0-9.16.50, 9.18.0-9.18.39, 9.20.0-9.20.13, 9.21.0-9.21.12, 9.16.8-S1-9.16.50-S1, 9.18.11-S1-9.18.39-S1, 9.20.9-S1-9.20.13-S1",
    "ai_score": 8.6
}