[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fDODq2xEjJShB72Hd7MvD5NBkjtomLUMPS7uaf74Gq10":3,"g5a-risk:CVE-2021-29256":132},{"success":4,"data":5,"meta":130},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":46,"epssPercentile":26,"epssTimeSeries":47,"severity":48,"affectedProducts":49,"affectedProductsCount":61,"references":62,"referencesCount":61,"weaknesses":75,"weaknessesCount":83,"isActivelyExploited":4,"cisaInfo":84,"otxData":26,"relatedBlogPosts":85,"seoMetadata":86,"configurations":111,"relatedVendorCves":128,"notableEvents":129},"CVE-2021-29256","What is CVE-2021-29256?",". 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.",". The Arm Mali GPU kernel driver allows an unprivileged user to achieve access to freed memory, leading to information disclosure or root privilege escalatio...","2021-05-24T18:15:08.033","2025-11-03T15:16:51.013",8.8,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:L\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":33,"CVSSMetricV2":34,"CVSSMetricV40":26},[16,29],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":27,"ImpactScore":28},"nvd@nist.gov","Primary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":22,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":25,"IntegrityImpact":25,"AvailabilityImpact":25,"BaseScore":12,"BaseSeverity":25,"ExploitCodeMaturity":26,"RemediationLevel":26,"ReportConfidence":26,"TemporalScore":26,"TemporalSeverity":26,"ConfidentialityRequirement":26,"IntegrityRequirement":26,"AvailabilityRequirement":26,"ModifiedAttackVector":26,"ModifiedAttackComplexity":26,"ModifiedPrivilegesRequired":26,"ModifiedUserInteraction":26,"ModifiedScope":26,"ModifiedConfidentialityImpact":26,"ModifiedIntegrityImpact":26,"ModifiedAvailabilityImpact":26,"EnvironmentalScore":26,"EnvironmentalSeverity":26},"3.1","NETWORK","LOW","NONE","UNCHANGED","HIGH",null,2.8,5.9,{"Source":30,"Type":31,"CVSSData":32,"ExploitabilityScore":27,"ImpactScore":28},"134c704f-9b21-4f2e-91b3-4a467353bcc0","Secondary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":22,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":25,"IntegrityImpact":25,"AvailabilityImpact":25,"BaseScore":12,"BaseSeverity":25,"ExploitCodeMaturity":26,"RemediationLevel":26,"ReportConfidence":26,"TemporalScore":26,"TemporalSeverity":26,"ConfidentialityRequirement":26,"IntegrityRequirement":26,"AvailabilityRequirement":26,"ModifiedAttackVector":26,"ModifiedAttackComplexity":26,"ModifiedPrivilegesRequired":26,"ModifiedUserInteraction":26,"ModifiedScope":26,"ModifiedConfidentialityImpact":26,"ModifiedIntegrityImpact":26,"ModifiedAvailabilityImpact":26,"EnvironmentalScore":26,"EnvironmentalSeverity":26},[],[35],{"Source":17,"Type":18,"CVSSData":36,"BaseSeverity":25,"ExploitabilityScore":43,"ImpactScore":44,"ACInsufInfo":45,"ObtainAllPrivilege":45,"ObtainUserPrivilege":45,"ObtainOtherPrivilege":45,"UserInteractionRequired":45},{"Version":37,"VectorString":38,"AccessVector":21,"AccessComplexity":22,"Authentication":39,"ConfidentialityImpact":40,"IntegrityImpact":40,"AvailabilityImpact":40,"BaseScore":41,"BaseSeverity":42,"Exploitability":26,"RemediationLevel":26,"ReportConfidence":26,"TemporalScore":26,"CollateralDamagePotential":26,"TargetDistribution":26,"ConfidentialityRequirement":26,"IntegrityRequirement":26,"AvailabilityRequirement":26,"EnvironmentalScore":26},"2.0","AV:N\u002FAC:L\u002FAu:S\u002FC:C\u002FI:C\u002FA:C","SINGLE","COMPLETE",9,"",8,10,false,0.02988,[46,46,46,46,46,46,46],"High",[50,55,58],{"vendor":51,"product":52,"version":53,"criteria":54,"vulnerable":4},"arm","bifrost_gpu_kernel_driver","*","cpe:2.3:a:arm:bifrost_gpu_kernel_driver:*:*:*:*:*:*:*:*",{"vendor":51,"product":56,"version":53,"criteria":57,"vulnerable":4},"midgard_gpu_kernel_driver","cpe:2.3:a:arm:midgard_gpu_kernel_driver:*:*:*:*:*:*:*:*",{"vendor":51,"product":59,"version":53,"criteria":60,"vulnerable":4},"valhall_gpu_kernel_driver","cpe:2.3:a:arm:valhall_gpu_kernel_driver:*:*:*:*:*:*:*:*",3,[63,68,70],{"url":64,"source":65,"tags":66},"https:\u002F\u002Fdeveloper.arm.com\u002Fsupport\u002Farm-security-updates\u002Fmali-gpu-kernel-driver","Arm",[67],"Vendor Advisory",{"url":64,"source":65,"tags":69},[67],{"url":71,"source":72,"tags":73},"https:\u002F\u002Fwww.cisa.gov\u002Fknown-exploited-vulnerabilities-catalog?field_cve=CVE-2021-29256","CISA",[74],"US Government Resource",[76],{"id":77,"name":78,"description":79,"extendedDescription":42,"status":80,"abstraction":81,"structure":82},"CWE-416","Use After Free","The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory \"belongs\" to the code that operates on the new pointer.","Stable","Variant","Simple",1,{"shortDescription":42,"requiredAction":42,"vulnerabilityName":42,"dateAdded":26},[],{"title":87,"metaDescription":88,"keywords":89,"canonicalUrl":90,"structuredData":91},"What is CVE-2021-29256? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2021-29256, a high severity cyber security vulnerability from 2021. . The Arm Mali GPU kernel driver allows an unprivileged use...","CVE-2021-29256, CVE-2021-29256 vulnerability, CVE-2021-29256 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2021, CVSS score, exploit, patch, remediation, arm security, bifrost_gpu_kernel_driver vulnerability, midgard_gpu_kernel_driver vulnerability, valhall_gpu_kernel_driver vulnerability","\u002Fwhat-is\u002Fcve-2021-29256",{"@context":92,"@type":93,"headline":87,"description":88,"datePublished":10,"dateModified":11,"author":94,"publisher":98,"about":102,"mainEntityOfPage":106,"articleSection":109,"keywords":110},"https:\u002F\u002Fschema.org","TechArticle",{"@type":95,"name":96,"url":97},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":95,"name":96,"url":97,"logo":99},{"@type":100,"url":101},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":103,"name":6,"description":104,"additionalType":105},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":107,"@id":108},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2021-29256","Cybersecurity","CVE-2021-29256, CVE-2021-29256 vulnerability, CVE-2021-29256 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[112],{"Operator":26,"Negate":26,"Nodes":113},[114],{"Operator":115,"Negate":45,"CPEMatch":116},"OR",[117,121,125],{"Vulnerable":4,"Criteria":54,"MatchCriteriaID":118,"VersionStartExcluding":26,"VersionStartIncluding":119,"VersionEndExcluding":120,"VersionEndIncluding":26},"D168CEB1-DAE6-4C9F-B101-C84CA7C0396D","r16p0","r30p0",{"Vulnerable":4,"Criteria":57,"MatchCriteriaID":122,"VersionStartExcluding":26,"VersionStartIncluding":123,"VersionEndExcluding":124,"VersionEndIncluding":26},"EB12C4AB-50D7-49F7-A8C3-33A8629D3C96","r28p0","r31p0",{"Vulnerable":4,"Criteria":60,"MatchCriteriaID":126,"VersionStartExcluding":26,"VersionStartIncluding":127,"VersionEndExcluding":120,"VersionEndIncluding":26},"E9713B79-2EFF-49C1-8B8F-4CA969BA351E","r19p0",[],[],{"lastModified":11,"cacheTime":131,"version":37},1792268910072,{"score":133,"band":48,"action":134,"scoredAt":135},73,"Emergency patch","2026-10-16T06:51:10.43983+00:00"]