CVE-2026-21733 (GCVE-0-2026-21733)

Vulnerability from cvelistv5 – Published: 2026-04-17 16:08 – Updated: 2026-04-17 17:20
VLAI?
Title
GPU DDK - Incorrect flags validation in RGXDerivePTEProt8 can allow GPU to overwrite read-only shared memory (e.g. libc.so)
Summary
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 and files. This is caused by improper handling of GPU memory reservation protections.
Severity ?
7.3 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
CWE
  • CWE-280 - Improper Handling of Insufficient Permissions or Privileges
Assigner
References
Impacted products
Vendor Product Version
Imagination Technologies Graphics DDK Affected: 1.17 RTM (custom)
Affected: 1.18 RTM (custom)
Affected: 23.2 RTM (custom)
Affected: 24.1 RTM , ≤ 24.2 RTM (custom)
Affected: 25.1 RTM , ≤ 25.3 RTM (custom)
Unaffected: 26.1 RTM (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "LOW",
              "baseScore": 7.3,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-21733",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-17T17:20:11.006304Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-17T17:20:54.424Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "platforms": [
            "Linux",
            "Android"
          ],
          "product": "Graphics DDK",
          "vendor": "Imagination Technologies",
          "versions": [
            {
              "status": "affected",
              "version": "1.17 RTM",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "1.18 RTM",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "23.2 RTM",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "24.2 RTM",
              "status": "affected",
              "version": "24.1 RTM",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "25.3 RTM",
              "status": "affected",
              "version": "25.1 RTM",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "26.1 RTM",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eSoftware 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 and files.\u003c/p\u003e\u003cp\u003eThis is caused by improper handling of GPU memory reservation protections.\u003c/p\u003e"
            }
          ],
          "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 and files.\n\nThis is caused by improper handling of GPU memory reservation protections."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-679",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-679: Exploitation of Improperly Configured or Implemented Memory Protections"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-280",
              "description": "CWE-280: Improper Handling of Insufficient Permissions or Privileges",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-17T16:08:25.661Z",
        "orgId": "367425dc-4d06-4041-9650-c2dc6aaa27ce",
        "shortName": "imaginationtech"
      },
      "references": [
        {
          "url": "https://www.imaginationtech.com/gpu-driver-vulnerabilities/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "GPU DDK - Incorrect flags validation in RGXDerivePTEProt8 can allow GPU to overwrite read-only shared memory (e.g. libc.so)",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "367425dc-4d06-4041-9650-c2dc6aaa27ce",
    "assignerShortName": "imaginationtech",
    "cveId": "CVE-2026-21733",
    "datePublished": "2026-04-17T16:08:25.661Z",
    "dateReserved": "2026-01-05T11:57:27.258Z",
    "dateUpdated": "2026-04-17T17:20:54.424Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-21733",
      "date": "2026-04-19",
      "epss": "0.00012",
      "percentile": "0.01681"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-21733\",\"sourceIdentifier\":\"367425dc-4d06-4041-9650-c2dc6aaa27ce\",\"published\":\"2026-04-17T17:16:35.220\",\"lastModified\":\"2026-04-17T19:01:56.030\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"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 and files.\\n\\nThis is caused by improper handling of GPU memory reservation protections.\"}],\"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:H/I:H/A:L\",\"baseScore\":7.3,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":1.8,\"impactScore\":5.5}]},\"weaknesses\":[{\"source\":\"367425dc-4d06-4041-9650-c2dc6aaa27ce\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-280\"}]}],\"references\":[{\"url\":\"https://www.imaginationtech.com/gpu-driver-vulnerabilities/\",\"source\":\"367425dc-4d06-4041-9650-c2dc6aaa27ce\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.3, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"LOW\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-21733\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-04-17T17:20:11.006304Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-04-17T17:19:31.532Z\"}}], \"cna\": {\"title\": \"GPU DDK - Incorrect flags validation in RGXDerivePTEProt8 can allow GPU to overwrite read-only shared memory (e.g. libc.so)\", \"source\": {\"discovery\": \"UNKNOWN\"}, \"impacts\": [{\"capecId\": \"CAPEC-679\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-679: Exploitation of Improperly Configured or Implemented Memory Protections\"}]}], \"affected\": [{\"vendor\": \"Imagination Technologies\", \"product\": \"Graphics DDK\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.17 RTM\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"1.18 RTM\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"23.2 RTM\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"24.1 RTM\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"24.2 RTM\"}, {\"status\": \"affected\", \"version\": \"25.1 RTM\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"25.3 RTM\"}, {\"status\": \"unaffected\", \"version\": \"26.1 RTM\", \"versionType\": \"custom\"}], \"platforms\": [\"Linux\", \"Android\"], \"defaultStatus\": \"unknown\"}], \"references\": [{\"url\": \"https://www.imaginationtech.com/gpu-driver-vulnerabilities/\"}], \"x_generator\": {\"engine\": \"Vulnogram 0.2.0\"}, \"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 and files.\\n\\nThis is caused by improper handling of GPU memory reservation protections.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eSoftware 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 and files.\u003c/p\u003e\u003cp\u003eThis is caused by improper handling of GPU memory reservation protections.\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-280\", \"description\": \"CWE-280: Improper Handling of Insufficient Permissions or Privileges\"}]}], \"providerMetadata\": {\"orgId\": \"367425dc-4d06-4041-9650-c2dc6aaa27ce\", \"shortName\": \"imaginationtech\", \"dateUpdated\": \"2026-04-17T16:08:25.661Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-21733\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-17T17:20:54.424Z\", \"dateReserved\": \"2026-01-05T11:57:27.258Z\", \"assignerOrgId\": \"367425dc-4d06-4041-9650-c2dc6aaa27ce\", \"datePublished\": \"2026-04-17T16:08:25.661Z\", \"assignerShortName\": \"imaginationtech\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.



Detection rules are retrieved from Rulezet.