{"history":[{"alert":0,"cve":"CVE-2021-29256","id":22236,"kind":"epss","observed_at":1794500401,"payload":"{\"date\": \"2026-11-12\", \"epss\": 0.02988, \"percentile\": 0.87504}"},{"alert":0,"cve":"CVE-2021-29256","id":19855,"kind":"epss","observed_at":1794327601,"payload":"{\"date\": \"2026-11-10\", \"epss\": 0.02988, \"percentile\": 0.87425}"},{"alert":0,"cve":"CVE-2021-29256","id":17821,"kind":"epss","observed_at":1794241201,"payload":"{\"date\": \"2026-11-09\", \"epss\": 0.02988, \"percentile\": 0.87409}"},{"alert":0,"cve":"CVE-2021-29256","id":15885,"kind":"epss","observed_at":1794154800,"payload":"{\"date\": \"2026-11-08\", \"epss\": 0.02988, \"percentile\": 0.87402}"},{"alert":0,"cve":"CVE-2021-29256","id":13863,"kind":"epss","observed_at":1794068402,"payload":"{\"date\": \"2026-11-07\", \"epss\": 0.02988, \"percentile\": 0.87393}"},{"alert":0,"cve":"CVE-2021-29256","id":11645,"kind":"epss","observed_at":1793982001,"payload":"{\"date\": \"2026-11-06\", \"epss\": 0.02988, \"percentile\": 0.87375}"},{"alert":0,"cve":"CVE-2021-29256","id":9631,"kind":"epss","observed_at":1793938800,"payload":"{\"date\": \"2026-11-05\", \"epss\": 0.02988, \"percentile\": 0.87363}"},{"alert":1,"cve":"CVE-2021-29256","id":8487,"kind":"cna","observed_at":1793895600,"payload":"{\"containers\": {\"adp\": [{\"providerMetadata\": {\"dateUpdated\": \"2024-08-03T22:02:51.225Z\", \"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\"}, \"references\": [{\"tags\": [\"x_refsource_CONFIRM\", \"x_transferred\"], \"url\": \"https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver\"}], \"title\": \"CVE Program Container\"}, {\"metrics\": [{\"cvssV3_1\": {\"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\"}}, {\"other\": {\"content\": {\"id\": \"CVE-2021-29256\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"role\": \"CISA Coordinator\", \"timestamp\": \"2025-02-04T19:43:25.118908Z\", \"version\": \"2.0.3\"}, \"type\": \"ssvc\"}}, {\"other\": {\"content\": {\"dateAdded\": \"2023-07-07\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-29256\"}, \"type\": \"kev\"}}], \"problemTypes\": [{\"descriptions\": [{\"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\", \"lang\": \"en\", \"type\": \"CWE\"}]}], \"providerMetadata\": {\"dateUpdated\": \"2025-10-21T23:25:45.386Z\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\"}, \"references\": [{\"tags\": [\"government-resource\"], \"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-29256\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2023-07-07T00:00:00.000Z\", \"value\": \"CVE-2021-29256 added to CISA KEV\"}], \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"affected\": [{\"product\": \"n/a\", \"vendor\": \"n/a\", \"versions\": [{\"status\": \"affected\", \"version\": \"n/a\"}]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \". The Arm Mali GPU kernel driver allows an unprivileged user to achieve access to freed memory, leading to information disclosure or root privilege escalation. This affects Bifrost r16p0 through r29p0 before r30p0, Valhall r19p0 through r29p0 before r30p0, and Midgard r28p0 through r30p0.\"}], \"problemTypes\": [{\"descriptions\": [{\"description\": \"n/a\", \"lang\": \"en\", \"type\": \"text\"}]}], \"providerMetadata\": {\"dateUpdated\": \"2021-05-24T17:56:27.000Z\", \"orgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"shortName\": \"mitre\"}, \"references\": [{\"tags\": [\"x_refsource_CONFIRM\"], \"url\": \"https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver\"}], \"x_legacyV4Record\": {\"CVE_data_meta\": {\"ASSIGNER\": \"cve@mitre.org\", \"ID\": \"CVE-2021-29256\", \"STATE\": \"PUBLIC\"}, \"affects\": {\"vendor\": {\"vendor_data\": [{\"product\": {\"product_data\": [{\"product_name\": \"n/a\", \"version\": {\"version_data\": [{\"version_value\": \"n/a\"}]}}]}, \"vendor_name\": \"n/a\"}]}}, \"data_format\": \"MITRE\", \"data_type\": \"CVE\", \"data_version\": \"4.0\", \"description\": {\"description_data\": [{\"lang\": \"eng\", \"value\": \". The Arm Mali GPU kernel driver allows an unprivileged user to achieve access to freed memory, leading to information disclosure or root privilege escalation. This affects Bifrost r16p0 through r29p0 before r30p0, Valhall r19p0 through r29p0 before r30p0, and Midgard r28p0 through r30p0.\"}]}, \"problemtype\": {\"problemtype_data\": [{\"description\": [{\"lang\": \"eng\", \"value\": \"n/a\"}]}]}, \"references\": {\"reference_data\": [{\"name\": \"https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver\", \"refsource\": \"CONFIRM\", \"url\": \"https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver\"}]}}}}, \"cveMetadata\": {\"assignerOrgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"assignerShortName\": \"mitre\", \"cveId\": \"CVE-2021-29256\", \"datePublished\": \"2021-05-24T17:56:27.000Z\", \"dateReserved\": \"2021-03-26T00:00:00.000Z\", \"dateUpdated\": \"2025-10-21T23:25:45.386Z\", \"state\": \"PUBLISHED\"}, \"dataType\": \"CVE_RECORD\", \"dataVersion\": \"5.1\"}"},{"alert":0,"cve":"CVE-2021-29256","id":7179,"kind":"epss","observed_at":1793809200,"payload":"{\"date\": \"2026-11-04\", \"epss\": 0.02988, \"percentile\": 0.8735}"},{"alert":0,"cve":"CVE-2021-29256","id":4956,"kind":"epss","observed_at":1793722800,"payload":"{\"date\": \"2026-11-03\", \"epss\": 0.02988, \"percentile\": 0.8733}"},{"alert":0,"cve":"CVE-2021-29256","id":2738,"kind":"epss","observed_at":1793665375,"payload":"{\"date\": \"2026-11-02\", \"epss\": 0.02988, \"percentile\": 0.87315}"},{"alert":1,"cve":"CVE-2021-29256","id":803,"kind":"kev","observed_at":1793665375,"payload":"{\"cveID\": \"CVE-2021-29256\", \"cwes\": [\"CWE-416\"], \"dateAdded\": \"2023-07-07\", \"dueDate\": \"2023-07-28\", \"forensicTriage\": \"No\", \"knownRansomwareCampaignUse\": \"Unknown\", \"notes\": \"https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities; https://nvd.nist.gov/vuln/detail/CVE-2021-29256\", \"product\": \"Mali Graphics Processing Unit (GPU)\", \"requiredAction\": \"Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.\", \"shortDescription\": \"Arm Mali GPU Kernel Driver contains a use-after-free vulnerability that may allow a non-privileged user to gain root privilege and/or disclose information.\", \"vendorProject\": \"Arm\", \"vulnerabilityName\": \"Arm Mali GPU Kernel Driver Use-After-Free Vulnerability\"}"}],"record":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"cna":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-03T22:02:51.225Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver"}],"title":"CVE Program Container"},{"metrics":[{"cvssV3_1":{"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"}},{"other":{"content":{"id":"CVE-2021-29256","options":[{"Exploitation":"active"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2025-02-04T19:43:25.118908Z","version":"2.0.3"},"type":"ssvc"}},{"other":{"content":{"dateAdded":"2023-07-07","reference":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-29256"},"type":"kev"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-416","description":"CWE-416 Use After Free","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2025-10-21T23:25:45.386Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"references":[{"tags":["government-resource"],"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-29256"}],"timeline":[{"lang":"en","time":"2023-07-07T00:00:00.000Z","value":"CVE-2021-29256 added to CISA KEV"}],"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"descriptions":[{"lang":"en","value":". The Arm Mali GPU kernel driver allows an unprivileged user to achieve access to freed memory, leading to information disclosure or root privilege escalation. This affects Bifrost r16p0 through r29p0 before r30p0, Valhall r19p0 through r29p0 before r30p0, and Midgard r28p0 through r30p0."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2021-05-24T17:56:27.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre"},"references":[{"tags":["x_refsource_CONFIRM"],"url":"https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2021-29256","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":". The Arm Mali GPU kernel driver allows an unprivileged user to achieve access to freed memory, leading to information disclosure or root privilege escalation. This affects Bifrost r16p0 through r29p0 before r30p0, Valhall r19p0 through r29p0 before r30p0, and Midgard r28p0 through r30p0."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver","refsource":"CONFIRM","url":"https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver"}]}}}},"cveMetadata":{"assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","assignerShortName":"mitre","cveId":"CVE-2021-29256","datePublished":"2021-05-24T17:56:27.000Z","dateReserved":"2021-03-26T00:00:00.000Z","dateUpdated":"2025-10-21T23:25:45.386Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"cna_checked":1794370801,"cve":"CVE-2021-29256","description":". The Arm Mali GPU kernel driver allows an unprivileged user to achieve access to freed memory, leading to information disclosure or root privilege escalation. This affects Bifrost r16p0 through r29p0 before r30p0, Valhall r19p0 through r29p0 before r30p0, and Midgard r28p0 through r30p0.","epss":{"date":"2026-11-12","epss":0.02988,"percentile":0.87504},"epss_checked":1794522003,"first_seen":1793665375,"kev":{"cveID":"CVE-2021-29256","cwes":["CWE-416"],"dateAdded":"2023-07-07","dueDate":"2023-07-28","forensicTriage":"No","knownRansomwareCampaignUse":"Unknown","notes":"https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities; https://nvd.nist.gov/vuln/detail/CVE-2021-29256","product":"Mali Graphics Processing Unit (GPU)","requiredAction":"Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.","shortDescription":"Arm Mali GPU Kernel Driver contains a use-after-free vulnerability that may allow a non-privileged user to gain root privilege and/or disclose information.","vendorProject":"Arm","vulnerabilityName":"Arm Mali GPU Kernel Driver Use-After-Free Vulnerability"},"kev_checked":1794522003,"products":"n/a n/a","references":["https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver","https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-29256"],"score":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","provider":"CISA-ADP","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"},"solutions":"","state":"PUBLISHED","title":"Arm Mali GPU Kernel Driver Use-After-Free Vulnerability","updated_at":1794500401,"workarounds":""},"sources":[]}
