CVE-2026-21733

{
  "id": "CVE-2026-21733",
  "sourceIdentifier": "367425dc-4d06-4041-9650-c2dc6aaa27ce",
  "published": "2026-04-17T17:16:35.220",
  "lastModified": "2026-10-26T21:10:00.170",
  "vulnStatus": "Analyzed",
  "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\n\n\nThis is caused by improper handling of GPU memory reservation protections."
    },
    {
      "lang": "es",
      "value": "El software instalado y ejecutado como un usuario no privilegiado puede realizar llamadas al sistema de la GPU indebidas para obtener permiso de escritura a memoria y archivos de modo de usuario encapsulados de solo lectura.\n\nEsto se debe al manejo indebido de las protecciones de reserva de memoria de la GPU."
    }
  ],
  "affected": [
    {
      "source": "367425dc-4d06-4041-9650-c2dc6aaa27ce",
      "affectedData": [
        {
          "vendor": "Imagination Technologies",
          "product": "Graphics DDK",
          "defaultStatus": "unknown",
          "platforms": [
            "Linux",
            "Android"
          ],
          "versions": [
            {
              "version": "1.18 RTM",
              "versionType": "custom",
              "status": "affected"
            },
            {
              "version": "23.2 RTM",
              "versionType": "custom",
              "status": "affected"
            },
            {
              "version": "24.1 RTM",
              "lessThanOrEqual": "24.2 RTM",
              "versionType": "custom",
              "status": "affected"
            },
            {
              "version": "25.1 RTM",
              "lessThanOrEqual": "25.3 RTM",
              "versionType": "custom",
              "status": "affected"
            },
            {
              "version": "26.1 RTM",
              "versionType": "custom",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
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        "type": "Secondary",
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          "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
      }
    ],
    "ssvcV203": [
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-17T17:20:11.006304Z",
          "id": "CVE-2026-21733",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
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      "source": "367425dc-4d06-4041-9650-c2dc6aaa27ce",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-280"
        }
      ]
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary",
      "description": [
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          "lang": "en",
          "value": "CWE-20"
        }
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  "references": [
    {
      "url": "https://www.imaginationtech.com/gpu-driver-vulnerabilities/",
      "source": "367425dc-4d06-4041-9650-c2dc6aaa27ce",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}