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{"cisaActionDue": "2021-11-17", "cisaExploitAdd": "2021-11-03", "cisaRequiredAction": "Apply updates per vendor instructions.", "cisaVulnerabilityName": "Arm Mali Graphics Processing Unit (GPU) Use-After-Free Vulnerability", "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:arm:bifrost_gpu_kernel_driver:*:*:*:*:*:*:*:*", "matchCriteriaId": "D4A585CF-8557-4660-BD0B-EAE94D1BF8A2", "versionEndExcluding": "r29p0", "versionStartIncluding": "r0p0", "vulnerable": true}, {"criteria": "cpe:2.3:a:arm:midgard_gpu_kernel_driver:*:*:*:*:*:*:*:*", "matchCriteriaId": "6E1FE39A-BD55-4C5F-BBAA-1138340F8329", "versionEndExcluding": "r31p0", "versionStartIncluding": "r4p0", "vulnerable": true}, {"criteria": "cpe:2.3:a:arm:valhall_gpu_kernel_driver:*:*:*:*:*:*:*:*", "matchCriteriaId": "AA218DCD-3CAF-4A64-BE97-F7E4916D9C6F", "versionEndExcluding": "r29p0", "versionStartIncluding": "r19p0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The Arm Mali GPU kernel driver allows privilege escalation or information disclosure because GPU memory operations are mishandled, leading to a use-after-free. This affects Bifrost r0p0 through r28p0 before r29p0, Valhall r19p0 through r28p0 before r29p0, and Midgard r4p0 through r30p0."}, {"lang": "es", "value": "El controlador del kernel de Arm Mali GPU, permite una escalada de privilegios o una divulgaci\u00f3n de informaci\u00f3n porque las operaciones de la memoria de la GPU son manejadas inapropiadamente, conllevando a un uso de la memoria previamente liberada. Esto afecta a Bifrost versiones r0p0 hasta r28p0, anteriores a r29p0, Valhall versiones r19p0 hasta r28p0 anteriores a r29p0 y Midgard versiones r4p0 hasta r30p0"}], "id": "CVE-2021-28663", "lastModified": "2025-10-22T00:17:30.660", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "COMPLETE", "baseScore": 9.0, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2021-05-10T15:15:07.557", "references": [{"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://developer.arm.com/support/arm-security-updates"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver"}, {"source": "cve@mitre.org", "tags": ["Exploit"], "url": "https://github.com/lntrx/CVE-2021-28663"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://developer.arm.com/support/arm-security-updates"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit"], "url": "https://github.com/lntrx/CVE-2021-28663"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-28663"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-416"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

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