Vulnerability-Lookup

CVE-2026-45197 (GCVE-0-2026-45197)

Vulnerability from cvelistv5 – Published: 2026-09-04 01:53 – Updated: 2026-09-04 01:53

Title

GPU DDK - TOCTOU affecting psFWMemContext->uiPageCatBaseRegSet

Summary

Kernel software installed and running inside a Guest VM may post improper commands to the GPU Firmware to trigger a read and/or write data outside the Guest's virtualised GPU memory. The firmware uses data provided by the Guest VM to set up accesses to memory. It validated this before use, but a TOCTOU bug was present which allowed the earlier check results to be invalidated.

Severity

No CVSS data available.

CWE

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Assigner

imaginationtech mitre root

References

1 reference

URL	Tags
https://www.imaginationtech.com/gpu-driver-vulner…

Impacted products

1 product

Vendor	Product	Version	CPE status
Imagination Technologies	Graphics DDK	Affected: 1.18 RTM2 (custom) Affected: 23.2 RTM2 (custom) Affected: 24.2 RTM2 (custom) Affected: 25.1 RTM2 , ≤ 25.3 RTM (custom) Affected: 26.1 RTM1 (custom) Unaffected: 26.1 RTM2 (custom)	guessed

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JSON

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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unknown",
          "platforms": [
            "Linux",
            "Android"
          ],
          "product": "Graphics DDK",
          "vendor": "Imagination Technologies",
          "versions": [
            {
              "status": "affected",
              "version": "1.18 RTM2",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "23.2 RTM2",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "24.2 RTM2",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "25.3 RTM",
              "status": "affected",
              "version": "25.1 RTM2",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "26.1 RTM1",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "26.1 RTM2",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
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              "type": "text/html",
              "value": "\u003cp\u003eKernel software installed and running inside a Guest VM may post improper commands to the GPU Firmware to trigger a read and/or write data outside the Guest\u0027s virtualised GPU memory.\u003c/p\u003e\u003cp\u003eThe firmware uses data provided by the Guest VM to set up accesses to memory. It validated this before use, but a TOCTOU bug was present which allowed the earlier check results to be invalidated.\u003c/p\u003e"
            }
          ],
          "value": "Kernel software installed and running inside a Guest VM may post improper commands to the GPU Firmware to trigger a read and/or write data outside the Guest\u0027s virtualised GPU memory.\n\n\n\nThe firmware uses data provided by the Guest VM to set up accesses to memory. It validated this before use, but a TOCTOU bug was present which allowed the earlier check results to be invalidated."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-480",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC - CAPEC-480: Escaping Virtualization (Version 3.9)"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-367",
              "description": "CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition",
              "lang": "en",
              "type": "CWE"
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          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-04T01:53:55.981Z",
        "orgId": "367425dc-4d06-4041-9650-c2dc6aaa27ce",
        "shortName": "imaginationtech"
      },
      "references": [
        {
          "url": "https://www.imaginationtech.com/gpu-driver-vulnerabilities/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "GPU DDK - TOCTOU affecting psFWMemContext-\u003euiPageCatBaseRegSet",
      "x_generator": {
        "engine": "Vulnogram 1.0.4"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "367425dc-4d06-4041-9650-c2dc6aaa27ce",
    "assignerShortName": "imaginationtech",
    "cveId": "CVE-2026-45197",
    "datePublished": "2026-09-04T01:53:55.981Z",
    "dateReserved": "2026-05-11T10:58:04.162Z",
    "dateUpdated": "2026-09-04T01:53:55.981Z",
    "state": "PUBLISHED"
  },
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      "date": "2026-09-04",
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  }
}

FKIE_CVE-2026-45197

Vulnerability from fkie_nvd - Published: 2026-09-04 02:17 - Updated: 2026-09-04 02:17

Severity

Summary

References

	URL	Tags
	367425dc-4d06-4041-9650-c2dc6aaa27ce	https://www.imaginationtech.com/gpu-driver-vulnerabilities/

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unknown",
          "platforms": [
            "Linux",
            "Android"
          ],
          "product": "Graphics DDK",
          "vendor": "Imagination Technologies",
          "versions": [
            {
              "status": "affected",
              "version": "1.18 RTM2",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "23.2 RTM2",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "24.2 RTM2",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "25.3 RTM",
              "status": "affected",
              "version": "25.1 RTM2",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "26.1 RTM1",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "26.1 RTM2",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "367425dc-4d06-4041-9650-c2dc6aaa27ce"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Kernel software installed and running inside a Guest VM may post improper commands to the GPU Firmware to trigger a read and/or write data outside the Guest\u0027s virtualised GPU memory.\n\n\n\nThe firmware uses data provided by the Guest VM to set up accesses to memory. It validated this before use, but a TOCTOU bug was present which allowed the earlier check results to be invalidated."
    }
  ],
  "id": "CVE-2026-45197",
  "lastModified": "2026-09-04T02:17:19.003",
  "metrics": {},
  "published": "2026-09-04T02:17:19.003",
  "references": [
    {
      "source": "367425dc-4d06-4041-9650-c2dc6aaa27ce",
      "url": "https://www.imaginationtech.com/gpu-driver-vulnerabilities/"
    }
  ],
  "sourceIdentifier": "367425dc-4d06-4041-9650-c2dc6aaa27ce",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-367"
        }
      ],
      "source": "367425dc-4d06-4041-9650-c2dc6aaa27ce",
      "type": "Secondary"
    }
  ]
}

GHSA-49PQ-RGJ7-Q6MH

Vulnerability from github – Published: 2026-09-04 03:31 – Updated: 2026-09-04 03:31

Details

Kernel software installed and running inside a Guest VM may post improper commands to the GPU Firmware to trigger a read and/or write data outside the Guest's virtualised GPU memory.

The firmware uses data provided by the Guest VM to set up accesses to memory. It validated this before use, but a TOCTOU bug was present which allowed the earlier check results to be invalidated.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-45197"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-367"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-04T02:17:19Z",
    "severity": null
  },
  "details": "Kernel software installed and running inside a Guest VM may post improper commands to the GPU Firmware to trigger a read and/or write data outside the Guest\u0027s virtualised GPU memory.\n\n\n\nThe firmware uses data provided by the Guest VM to set up accesses to memory. It validated this before use, but a TOCTOU bug was present which allowed the earlier check results to be invalidated.",
  "id": "GHSA-49pq-rgj7-q6mh",
  "modified": "2026-09-04T03:31:05Z",
  "published": "2026-09-04T03:31:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45197"
    },
    {
      "type": "WEB",
      "url": "https://www.imaginationtech.com/gpu-driver-vulnerabilities"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

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.

Detection rules are retrieved from Rulezet.

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.

Action not permitted

CVE-2026-45197 (GCVE-0-2026-45197)

FKIE_CVE-2026-45197

GHSA-49PQ-RGJ7-Q6MH

Tags

Sightings

Nomenclature