CVE-2026-4891_CVE-2026-4891

{
    "lastseen": "",
    "description": "A heap-based out-of-bounds read vulnerability in the DNSSEC validation of dnsmasq allows remote attackers to cause a denial of service via a crafted DNS packet.",
    "published": "2026-05-11T16:47:33.202Z",
    "modified": "2026-05-11T18:27:52.738Z",
    "type": "cve",
    "title": "CVE-2026-4891",
    "source": "certcc",
    "references": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2026q2/018471.html\nhttps://www.kb.cert.org/vuls/id/471747\nhttps://thekelleys.org.uk/dnsmasq/CVE/\nhttps://github.com/NixOS/nixpkgs/pull/519082\nhttps://github.com/NixOS/nixpkgs/pull/519093",
    "id": "CVE-2026-4891",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "dnsmasq dnsmasq 2.92rel2",
    "sourceHref": "",
    "cvss": {
        "score": 5.3,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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": "dnsmasq",
    "version": "2.92rel2",
    "vendor": "dnsmasq",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}