{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-3196", "assignerOrgId": "92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5", "state": "PUBLISHED", "assignerShortName": "fedora", "dateReserved": "2026-02-25T11:09:37.726Z", "datePublished": "2026-06-19T16:23:02.849Z", "dateUpdated": "2026-06-19T16:23:02.849Z"}, "containers": {"cna": {"title": "Qemu-kvm: virtio-snd: integer overflow leading to unbounded memory allocation", "metrics": [{"other": {"content": {"value": "Moderate", "namespace": "https://access.redhat.com/security/updates/classification/"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "format": "CVSS"}], "descriptions": [{"lang": "en", "value": "An integer overflow vulnerability was found in the virtio-snd device via PCM_INFO requests from the guest. A malicious guest can provide out-of-bounds stream counts, potentially leading to unbounded memory allocation on the host and a denial of service condition."}], "affected": [{"versions": [{"status": "affected", "version": "8.2.0", "versionType": "semver", "lessThanOrEqual": "10.2.1"}], "packageName": "qemu", "collectionURL": "https://gitlab.com/qemu-project/qemu", "defaultStatus": "unaffected"}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "qemu-kvm", "defaultStatus": "unaffected", "cpes": ["cpe:/o:redhat:enterprise_linux:10"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 6", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "qemu-kvm", "defaultStatus": "unaffected", "cpes": ["cpe:/o:redhat:enterprise_linux:6"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "qemu-kvm", "defaultStatus": "unaffected", "cpes": ["cpe:/o:redhat:enterprise_linux:7"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "qemu-kvm-ma", "defaultStatus": "unaffected", "cpes": ["cpe:/o:redhat:enterprise_linux:7"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "virt:rhel/qemu-kvm", "defaultStatus": "unaffected", "cpes": ["cpe:/o:redhat:enterprise_linux:8"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "qemu-kvm", "defaultStatus": "unaffected", "cpes": ["cpe:/o:redhat:enterprise_linux:9"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rhcos", "defaultStatus": "unaffected", "cpes": ["cpe:/a:redhat:openshift:4"]}], "references": [{"url": "https://access.redhat.com/security/cve/CVE-2026-3196", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2443789", "name": "RHBZ#2443789", "tags": ["issue-tracking", "x_refsource_REDHAT"]}], "datePublic": "2026-02-20T00:00:00.000Z", "problemTypes": [{"descriptions": [{"cweId": "CWE-190", "description": "Integer Overflow or Wraparound", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-190: Integer Overflow or Wraparound", "timeline": [{"lang": "en", "time": "2026-03-02T11:23:01.603Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-02-20T00:00:00.000Z", "value": "Made public."}], "credits": [{"lang": "en", "value": "Red Hat would like to thank Mingyuan Luo for reporting this issue."}], "providerMetadata": {"orgId": "92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5", "shortName": "fedora", "dateUpdated": "2026-06-19T16:23:02.849Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}}}

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{"acknowledgement": "Red Hat would like to thank Mingyuan Luo for reporting this issue.", "bugzilla": {"description": "qemu-kvm: virtio-snd: integer overflow leading to unbounded memory allocation", "id": "2443789", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2443789"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-190", "details": ["An integer overflow vulnerability was found in the virtio-snd device via PCM_INFO requests from the guest. A malicious guest can provide out-of-bounds stream counts, potentially leading to unbounded memory allocation on the host and a denial of service condition."], "name": "CVE-2026-3196", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "qemu-kvm-ma", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "virt:rhel/qemu-kvm", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-02-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-3196\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-3196"], "statement": "The `qemu-kvm` packages as shipped with Red Hat Enterprise Linux are not affected by this CVE. The virtio-snd device is disabled at build-time in RHEL, effectively removing the attack surface.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "product": "qemu", "vendor": "qemu"}], "created": "2026-03-04T21:04:37.532381+00:00", "updated": "2026-03-04T21:04:37.532454+00:00", "vendors": ["qemu", "qemu$PRODUCT$qemu"]}