Spice-vdagent: integer overflow in udscs_write() leading to heap buffer overflow_CVE-2026-57965

{
    "lastseen": "",
    "description": "A flaw was found in spice-vdagent. A malicious or compromised SPICE host can trigger an integer overflow by sending a specially crafted message. This vulnerability can lead to a heap buffer overflow, causing the spice-vdagent daemon to crash and resulting in a Denial of Service (DoS) for the virtual machine. This issue requires the SPICE host to be untrusted or compromised for exploitation.",
    "published": "2026-06-29T07:53:39.079Z",
    "modified": "2026-06-29T08:06:12.060Z",
    "type": "cve",
    "title": "Spice-vdagent: integer overflow in udscs_write() leading to heap buffer overflow",
    "source": "redhat",
    "references": "https://access.redhat.com/security/cve/CVE-2026-57965\nhttps://bugzilla.redhat.com/show_bug.cgi?id=2493581",
    "id": "CVE-2026-57965",
    "bulletinFamily": "",
    "cwe": [
        "CWE-190"
    ],
    "cvelist": null,
    "sourceData": "",
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    "cvss": {
        "score": 5.1,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H",
        "version": "3.1"
    },
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        "baseScore": 0,
        "baseSeverity": "",
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        "privilegesRequired": "",
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        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Red Hat Enterprise Linux 10",
    "version": "",
    "vendor": "Red Hat",
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    "ai_score": 0
}