CVE-2026-0001 (GCVE-0-2026-0001)
Vulnerability from cvelistv5 – Published: 2026-09-08 14:18 – Updated: 2026-09-08 14:36
VLAI
EPSS
VEX
Title
Mali GPU Kernel Driver allows access to already freed memory
Summary
Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform valid GPU memory processing operations to access already freed memory.
This issue affects Bifrost GPU Kernel Driver: from r41p0 through r49p5, from r50p0 through r51p0, from r54p1 through r54p2; Valhall GPU Kernel Driver: from r41p0 through r49p5, from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r49p5, from r50p0 through r54p3, r55p0.
Severity
4.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 14:36 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
Impacted products
3 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Arm Ltd | Bifrost GPU Kernel Driver |
Affected:
r41p0 , ≤ r49p5
(patch)
Affected: r50p0 , ≤ r51p0 (patch) Affected: r54p1 , ≤ r54p2 (patch) |
guessed | |
| Arm Ltd | Valhall GPU Kernel Driver |
Affected:
r41p0 , ≤ r49p5
(patch)
Affected: r50p0 , ≤ r54p3 (patch) Affected: r55p0 (patch) Unaffected: r56p0 (patch) |
guessed | |
| Arm Ltd | Arm 5th Gen GPU Architecture Kernel Driver |
Affected:
r41p0 , ≤ r49p5
(patch)
Affected: r50p0 , ≤ r54p3 (patch) Affected: r55p0 (patch) Unaffected: r56p0 (patch) |
guessed |
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 4.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-0001",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-08T14:36:33.816864Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-08T14:36:37.191Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Bifrost GPU Kernel Driver",
"vendor": "Arm Ltd",
"versions": [
{
"lessThanOrEqual": "r49p5",
"status": "affected",
"version": "r41p0",
"versionType": "patch"
},
{
"lessThanOrEqual": "r51p0",
"status": "affected",
"version": "r50p0",
"versionType": "patch"
},
{
"lessThanOrEqual": "r54p2",
"status": "affected",
"version": "r54p1",
"versionType": "patch"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Valhall GPU Kernel Driver",
"vendor": "Arm Ltd",
"versions": [
{
"lessThanOrEqual": "r49p5",
"status": "affected",
"version": "r41p0",
"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 Kernel Driver",
"vendor": "Arm Ltd",
"versions": [
{
"lessThanOrEqual": "r49p5",
"status": "affected",
"version": "r41p0",
"versionType": "patch"
},
{
"lessThanOrEqual": "r54p3",
"status": "affected",
"version": "r50p0",
"versionType": "patch"
},
{
"status": "affected",
"version": "r55p0",
"versionType": "patch"
},
{
"status": "unaffected",
"version": "r56p0",
"versionType": "patch"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "PhysicalLab (Kihyun Jeong, Yuchan Nam, Hyungjung Joo, Hojun Lee, Yunje Shin, Han Lee, seeh0)"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eUse After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform valid GPU memory processing operations to access already freed memory.\u003c/p\u003e\u003cp\u003eThis issue affects Bifrost GPU Kernel Driver: from r41p0 through r49p5, from r50p0 through r51p0, from r54p1 through r54p2; Valhall GPU Kernel Driver: from r41p0 through r49p5, from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r49p5, from r50p0 through r54p3, r55p0.\u003c/p\u003e"
}
],
"value": "Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform valid GPU memory processing operations to access already freed memory.\n\n\n\nThis issue affects Bifrost GPU Kernel Driver: from r41p0 through r49p5, from r50p0 through r51p0, from r54p1 through r54p2; Valhall GPU Kernel Driver: from r41p0 through r49p5, from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r49p5, from r50p0 through r54p3, r55p0."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-08T14:18:57.227Z",
"orgId": "56a131ea-b967-4a0d-a41e-5f3549952846",
"shortName": "Arm"
},
"references": [
{
"url": "https://support.arm.com/documentation/111552/1-0/?lang=en"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eThis issue has been fixed in the following versions: Valhall GPU Kernel Driver: r56p0; Arm 5th Gen GPU Architecture Kernel Driver: r56p0. Arm partners are recommended to upgrade to the latest applicable version as soon as possible.\u003c/p\u003e"
}
],
"value": "This issue has been fixed in the following versions: Valhall GPU Kernel Driver: r56p0; Arm 5th Gen GPU Architecture Kernel Driver: r56p0. Arm partners are recommended to upgrade to the latest applicable version as soon as possible."
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Mali GPU Kernel Driver allows access to already freed memory",
"x_generator": {
"engine": "Vulnogram 1.0.5"
}
}
},
"cveMetadata": {
"assignerOrgId": "56a131ea-b967-4a0d-a41e-5f3549952846",
"assignerShortName": "Arm",
"cveId": "CVE-2026-0001",
"datePublished": "2026-09-08T14:18:57.227Z",
"dateReserved": "2025-10-09T10:18:31.149Z",
"dateUpdated": "2026-09-08T14:36:37.191Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-0001",
"date": "2026-09-10",
"epss": "0.00169",
"percentile": "0.06428"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-0001\",\"sourceIdentifier\":\"arm-security@arm.com\",\"published\":\"2026-09-08T15:18:39.773\",\"lastModified\":\"2026-09-08T15:24:07.790\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform valid GPU memory processing operations to access already freed memory.\\n\\n\\n\\nThis issue affects Bifrost GPU Kernel Driver: from r41p0 through r49p5, from r50p0 through r51p0, from r54p1 through r54p2; Valhall GPU Kernel Driver: from r41p0 through r49p5, from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r49p5, from r50p0 through r54p3, r55p0.\"}],\"affected\":[{\"source\":\"arm-security@arm.com\",\"affectedData\":[{\"vendor\":\"Arm Ltd\",\"product\":\"Bifrost GPU Kernel Driver\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"r41p0\",\"lessThanOrEqual\":\"r49p5\",\"versionType\":\"patch\",\"status\":\"affected\"},{\"version\":\"r50p0\",\"lessThanOrEqual\":\"r51p0\",\"versionType\":\"patch\",\"status\":\"affected\"},{\"version\":\"r54p1\",\"lessThanOrEqual\":\"r54p2\",\"versionType\":\"patch\",\"status\":\"affected\"}]},{\"vendor\":\"Arm Ltd\",\"product\":\"Valhall GPU Kernel Driver\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"r41p0\",\"lessThanOrEqual\":\"r49p5\",\"versionType\":\"patch\",\"status\":\"affected\"},{\"version\":\"r50p0\",\"lessThanOrEqual\":\"r54p3\",\"versionType\":\"patch\",\"status\":\"affected\"},{\"version\":\"r55p0\",\"versionType\":\"patch\",\"status\":\"affected\"},{\"version\":\"r56p0\",\"versionType\":\"patch\",\"status\":\"unaffected\"}]},{\"vendor\":\"Arm Ltd\",\"product\":\"Arm 5th Gen GPU Architecture Kernel Driver\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"r41p0\",\"lessThanOrEqual\":\"r49p5\",\"versionType\":\"patch\",\"status\":\"affected\"},{\"version\":\"r50p0\",\"lessThanOrEqual\":\"r54p3\",\"versionType\":\"patch\",\"status\":\"affected\"},{\"version\":\"r55p0\",\"versionType\":\"patch\",\"status\":\"affected\"},{\"version\":\"r56p0\",\"versionType\":\"patch\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N\",\"baseScore\":4.4,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.8,\"impactScore\":2.5}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-09-08T14:36:33.816864Z\",\"id\":\"CVE-2026-0001\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"arm-security@arm.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"references\":[{\"url\":\"https://support.arm.com/documentation/111552/1-0/?lang=en\",\"source\":\"arm-security@arm.com\"}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 4.4, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"LOW\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-0001\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-09-08T14:36:33.816864Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-09-08T14:36:20.835Z\"}}], \"cna\": {\"title\": \"Mali GPU Kernel Driver allows access to already freed memory\", \"source\": {\"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"PhysicalLab (Kihyun Jeong, Yuchan Nam, Hyungjung Joo, Hojun Lee, Yunje Shin, Han Lee, seeh0)\"}], \"affected\": [{\"vendor\": \"Arm Ltd\", \"product\": \"Bifrost GPU Kernel Driver\", \"versions\": [{\"status\": \"affected\", \"version\": \"r41p0\", \"versionType\": \"patch\", \"lessThanOrEqual\": \"r49p5\"}, {\"status\": \"affected\", \"version\": \"r50p0\", \"versionType\": \"patch\", \"lessThanOrEqual\": \"r51p0\"}, {\"status\": \"affected\", \"version\": \"r54p1\", \"versionType\": \"patch\", \"lessThanOrEqual\": \"r54p2\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"Arm Ltd\", \"product\": \"Valhall GPU Kernel Driver\", \"versions\": [{\"status\": \"affected\", \"version\": \"r41p0\", \"versionType\": \"patch\", \"lessThanOrEqual\": \"r49p5\"}, {\"status\": \"affected\", \"version\": \"r50p0\", \"versionType\": \"patch\", \"lessThanOrEqual\": \"r54p3\"}, {\"status\": \"affected\", \"version\": \"r55p0\", \"versionType\": \"patch\"}, {\"status\": \"unaffected\", \"version\": \"r56p0\", \"versionType\": \"patch\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"Arm Ltd\", \"product\": \"Arm 5th Gen GPU Architecture Kernel Driver\", \"versions\": [{\"status\": \"affected\", \"version\": \"r41p0\", \"versionType\": \"patch\", \"lessThanOrEqual\": \"r49p5\"}, {\"status\": \"affected\", \"version\": \"r50p0\", \"versionType\": \"patch\", \"lessThanOrEqual\": \"r54p3\"}, {\"status\": \"affected\", \"version\": \"r55p0\", \"versionType\": \"patch\"}, {\"status\": \"unaffected\", \"version\": \"r56p0\", \"versionType\": \"patch\"}], \"defaultStatus\": \"unaffected\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"This issue has been fixed in the following versions: Valhall GPU Kernel Driver: r56p0; Arm 5th Gen GPU Architecture Kernel Driver: r56p0. Arm partners are recommended to upgrade to the latest applicable version as soon as possible.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eThis issue has been fixed in the following versions: Valhall GPU Kernel Driver: r56p0; Arm 5th Gen GPU Architecture Kernel Driver: r56p0. Arm partners are recommended to upgrade to the latest applicable version as soon as possible.\u003c/p\u003e\", \"base64\": false}]}], \"references\": [{\"url\": \"https://support.arm.com/documentation/111552/1-0/?lang=en\"}], \"x_generator\": {\"engine\": \"Vulnogram 1.0.5\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform valid GPU memory processing operations to access already freed memory.\\n\\n\\n\\nThis issue affects Bifrost GPU Kernel Driver: from r41p0 through r49p5, from r50p0 through r51p0, from r54p1 through r54p2; Valhall GPU Kernel Driver: from r41p0 through r49p5, from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r49p5, from r50p0 through r54p3, r55p0.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eUse After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform valid GPU memory processing operations to access already freed memory.\u003c/p\u003e\u003cp\u003eThis issue affects Bifrost GPU Kernel Driver: from r41p0 through r49p5, from r50p0 through r51p0, from r54p1 through r54p2; Valhall GPU Kernel Driver: from r41p0 through r49p5, from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r49p5, from r50p0 through r54p3, r55p0.\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\"}]}], \"providerMetadata\": {\"orgId\": \"56a131ea-b967-4a0d-a41e-5f3549952846\", \"shortName\": \"Arm\", \"dateUpdated\": \"2026-09-08T14:18:57.227Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-0001\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-09-08T14:36:37.191Z\", \"dateReserved\": \"2025-10-09T10:18:31.149Z\", \"assignerOrgId\": \"56a131ea-b967-4a0d-a41e-5f3549952846\", \"datePublished\": \"2026-09-08T14:18:57.227Z\", \"assignerShortName\": \"Arm\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Loading…
Loading…