CVE-2026-9034

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Bifrost GPU Userspace Driver", "vendor": "Arm Ltd", "versions": [{"lessThanOrEqual": "r49p5", "status": "affected", "version": "r42p0", "versionType": "patch"}, {"lessThanOrEqual": "r51p0", "status": "affected", "version": "r50p0", "versionType": "patch"}, {"lessThanOrEqual": "r54p3", "status": "affected", "version": "r54p1", "versionType": "patch"}]}, {"defaultStatus": "unaffected", "product": "Valhall GPU Userspace Driver", "vendor": "Arm Ltd", "versions": [{"lessThanOrEqual": "r49p5", "status": "affected", "version": "r42p0", "versionType": "patch"}, {"lessThanOrEqual": "r54p3", "status": "affected", "version": "r50p0", "versionType": "patch"}, {"status": "affected", "version": "r55p0", "versionType": "patch"}, {"status": "unaffected", "version": "r56p0", "versionType": "patch"}]}, {"defaultStatus": "unaffected", "product": "Arm 5th Gen GPU Architecture Userspace Driver", "vendor": "Arm Ltd", "versions": [{"lessThanOrEqual": "r49p5", "status": "affected", "version": "r42p0", "versionType": "patch"}, {"lessThanOrEqual": "r54p3", "status": "affected", "version": "r50p0", "versionType": "patch"}, {"status": "affected", "version": "r55p0", "versionType": "patch"}, {"status": "unaffected", "version": "r56p0", "versionType": "patch"}]}], "source": "arm-security@arm.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Use After Free vulnerability in Arm Ltd Bifrost GPU Userspace Driver, Arm Ltd Valhall GPU Userspace Driver, Arm Ltd Arm 5th Gen GPU Architecture Userspace Driver allows a non-privileged user process to perform valid GPU processing operations, including via WebGL or WebGPU, to access already freed memory.\n\n\n\nThis issue affects Bifrost GPU Userspace Driver: from r42p0 through r49p5, from r50p0 through r51p0, from r54p1 through r54p3; Valhall GPU Userspace Driver: from r42p0 through r49p5, from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Userspace Driver: from r42p0 through r49p5, from r50p0 through r54p3, r55p0."}], "id": "CVE-2026-9034", "lastModified": "2026-09-10T19:17:42.527", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-9034", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-10T18:02:25.753459Z", "version": "2.0.3"}}]}, "published": "2026-09-08T15:18:56.353", "references": [{"source": "arm-security@arm.com", "url": "https://support.arm.com/documentation/111552/1-0/?lang=en"}], "sourceIdentifier": "arm-security@arm.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "arm-security@arm.com", "type": "Secondary"}]}

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