CVE-2025-11234

{"id": "CVE-2025-11234", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "secalert@redhat.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2025-10-03T11:15:30.437", "references": [{"url": "https://access.redhat.com/errata/RHSA-2025:23228", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:0326", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:0332", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:0702", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/security/cve/CVE-2025-11234", "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2401209", "source": "secalert@redhat.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "A flaw was found in QEMU. If the QIOChannelWebsock object is freed while it is waiting to complete a handshake, a GSource is leaked. This can lead to the callback firing later on and triggering a use-after-free in the use of the channel. This can be abused by a malicious client with network access to the VNC WebSocket port to cause a denial of service during the WebSocket handshake prior to the VNC client authentication."}], "lastModified": "2026-01-22T20:16:05.833", "sourceIdentifier": "secalert@redhat.com"}