Vulnerability-Lookup

GHSA-4P5H-7MQ4-J3P9

Vulnerability from github – Published: 2026-08-21 06:31 – Updated: 2026-08-21 06:31

Details

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

Software installed and run under a Guest VM can send commands to the GPU which result in out of bounds memory accesses. These can be used to escalate privileges.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-45199"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-823"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-21T04:18:02Z",
    "severity": null
  },
  "details": "Kernel software installed and running inside a Guest VM may post improper commands to the GPU Firmware to trigger a write of data outside the Guest\u0027s virtualised GPU memory.\n\n\n\nSoftware installed and run under a Guest VM can send commands to the GPU which result in out of bounds memory accesses. These can be used to escalate privileges.",
  "id": "GHSA-4p5h-7mq4-j3p9",
  "modified": "2026-08-21T06:31:35Z",
  "published": "2026-08-21T06:31:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45199"
    },
    {
      "type": "WEB",
      "url": "https://www.imaginationtech.com/gpu-driver-vulnerabilities"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-45199 (GCVE-0-2026-45199)

Vulnerability from cvelistv5 – Published: 2026-08-21 03:36 – Updated: 2026-08-25 03:56

Title

GPU DDK - rgxfw_to_ptr() does not reject FW private data pointers

Summary

Kernel software installed and running inside a Guest VM may post improper commands to the GPU Firmware to trigger a write of data outside the Guest's virtualised GPU memory. Software installed and run under a Guest VM can send commands to the GPU which result in out of bounds memory accesses. These can be used to escalate privileges.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-24 00:00 UTC

CWE

CWE-823 - Use of Out-of-range Pointer Offset (4.16)

Assigner

imaginationtech mitre root

References

1 reference

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

Impacted products

1 product

Vendor	Product	Version
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) Unaffected: 26.1 RTM1 (custom) Unaffected: 26.1 RTM2 (custom)

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  "containers": {
    "adp": [
      {
        "metrics": [
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                "id": "CVE-2026-45199",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-24T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
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        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-25T03:56:19.990Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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    ],
    "cna": {
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          "platforms": [
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              "version": "1.18 RTM2",
              "versionType": "custom"
            },
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            },
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              "versionType": "custom"
            },
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              "version": "25.1 RTM2",
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      "impacts": [
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          "capecId": "CAPEC-480",
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      "problemTypes": [
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      "references": [
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          "url": "https://www.imaginationtech.com/gpu-driver-vulnerabilities/"
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    "datePublished": "2026-08-21T03:36:39.887Z",
    "dateReserved": "2026-05-11T10:58:04.162Z",
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    "state": "PUBLISHED"
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  "dataVersion": "5.2"
}

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

GHSA-4P5H-7MQ4-J3P9

CVE-2026-45199 (GCVE-0-2026-45199)

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Sightings

Nomenclature