Software installed and run as a non-privileged user may conduct improper GPU system calls to gain write permission to read-only wrapped user-mode memory.
This is caused by improper handling of the memory protections for the user-mode wrapped memory resource.
1.17 RTM - AFFECTED
1.18 RTM - AFFECTED
23.2 RTM - AFFECTED
<= 25.1 RTM - AFFECTED
<= 25.3 RTM - UNAFFECTED
26.1 RTM - UNAFFECTED
{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-21736",
"assignerOrgId": "367425dc-4d06-4041-9650-c2dc6aaa27ce",
"assignerShortName": "imaginationtech",
"dateUpdated": "2026-03-09T16:06:41.667Z",
"dateReserved": "2026-01-05T11:57:27.258Z",
"datePublished": "2026-03-09T12:23:38.659Z",
"state": "PUBLISHED"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "367425dc-4d06-4041-9650-c2dc6aaa27ce",
"shortName": "imaginationtech",
"dateUpdated": "2026-03-09T12:23:38.659Z"
},
"title": "GPU DDK - Insufficient permission check in PhysmemWrapExtMem() when write attribute support enabled",
"descriptions": [
{
"lang": "en",
"value": "Software installed and run as a non-privileged user may conduct improper GPU system calls to gain write permission to read-only wrapped user-mode memory.\n\nThis is caused by improper handling of the memory protections for the user-mode wrapped memory resource.",
"supportingMedia": [
{
"type": "text/html",
"base64": false,
"value": "<p>Software installed and run as a non-privileged user may conduct improper GPU system calls to gain write permission to read-only wrapped user-mode memory.</p><p>This is caused by improper handling of the memory protections for the user-mode wrapped memory resource.</p>"
}
]
}
],
"affected": [
{
"vendor": "Imagination Technologies",
"product": "Graphics DDK",
"platforms": [
"Linux",
"Android"
],
"defaultStatus": "unknown",
"versions": [
{
"version": "1.17 RTM",
"status": "affected",
"versionType": "custom"
},
{
"version": "1.18 RTM",
"status": "affected",
"versionType": "custom"
},
{
"version": "23.2 RTM",
"status": "affected",
"versionType": "custom"
},
{
"version": "24.1 RTM",
"status": "affected",
"versionType": "custom",
"lessThanOrEqual": "25.1 RTM"
},
{
"version": "25.2 RTM",
"status": "unaffected",
"versionType": "custom",
"lessThanOrEqual": "25.3 RTM"
},
{
"version": "26.1 RTM",
"status": "unaffected",
"versionType": "custom"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"description": "CWE-280: Improper Handling of Insufficient Permissions or Privileges",
"cweId": "CWE-280",
"type": "CWE"
}
]
}
],
"references": [
{
"url": "https://www.imaginationtech.com/gpu-driver-vulnerabilities/"
}
],
"impacts": [
{
"capecId": "CAPEC-679",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-679: Exploitation of Improperly Configured or Implemented Memory Protections"
}
]
}
]
},
"adp": [
{
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-03-09T16:06:41.667Z"
},
"title": "CISA ADP Vulnrichment",
"metrics": [
{
"cvssV3_1": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"availabilityImpact": "NONE",
"baseScore": 4.4,
"baseSeverity": "MEDIUM"
}
},
{}
]
}
]
}
}