Vulnerability-Lookup

GHSA-HW4H-9C69-9Q35

Vulnerability from github – Published: 2026-07-25 00:31 – Updated: 2026-07-25 00:31

Details

An integer overflow when calculating physical offsets for sparse PMRs may result in 32-bit truncation of address computations for PMRs larger than 4 GB. This can lead to incorrect GPU MMU mappings and may allow a non-privileged user to trigger access to unintended physical memory, resulting in memory corruption or information disclosure.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-16280"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-24T23:16:50Z",
    "severity": null
  },
  "details": "An integer overflow when calculating physical offsets for sparse PMRs may result in 32-bit truncation of address computations for PMRs larger than 4 GB. This can lead to incorrect GPU MMU mappings and may allow a non-privileged user to trigger access to unintended physical memory, resulting in memory corruption or information disclosure.",
  "id": "GHSA-hw4h-9c69-9q35",
  "modified": "2026-07-25T00:31:47Z",
  "published": "2026-07-25T00:31:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-16280"
    },
    {
      "type": "WEB",
      "url": "https://www.imaginationtech.com/gpu-driver-vulnerabilities"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-16280 (GCVE-0-2026-16280)

Vulnerability from cvelistv5 – Published: 2026-07-24 22:02 – Updated: 2026-07-24 22:02

Title

GPU DDK - Integer overflow in _PMRLogicalOffsetToPhysicalOffset

Summary

Severity

No CVSS data available.

CWE

CWE-190 - Integer Overflow or Wraparound

Assigner

imaginationtech

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) Affected: 26.1 RTM1 (custom) Unaffected: 26.1 RTM2 (custom)

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{
  "containers": {
    "cna": {
      "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": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "An integer overflow when calculating physical offsets for sparse PMRs may result in 32-bit truncation of address computations for PMRs larger than 4 GB. This can lead to incorrect GPU MMU mappings and may allow a non-privileged user to trigger access to unintended physical memory, resulting in memory corruption or information disclosure."
            }
          ],
          "value": "An integer overflow when calculating physical offsets for sparse PMRs may result in 32-bit truncation of address computations for PMRs larger than 4 GB. This can lead to incorrect GPU MMU mappings and may allow a non-privileged user to trigger access to unintended physical memory, resulting in memory corruption or information disclosure."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-679",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-679: Exploitation of Improperly Configured or Implemented Memory Protections (Version 3.9)"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-190",
              "description": "CWE-190: Integer Overflow or Wraparound",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-24T22:02:38.245Z",
        "orgId": "367425dc-4d06-4041-9650-c2dc6aaa27ce",
        "shortName": "imaginationtech"
      },
      "references": [
        {
          "url": "https://www.imaginationtech.com/gpu-driver-vulnerabilities/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "GPU DDK - Integer overflow in _PMRLogicalOffsetToPhysicalOffset",
      "x_generator": {
        "engine": "Vulnogram 1.0.4"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "367425dc-4d06-4041-9650-c2dc6aaa27ce",
    "assignerShortName": "imaginationtech",
    "cveId": "CVE-2026-16280",
    "datePublished": "2026-07-24T22:02:38.245Z",
    "dateReserved": "2026-07-20T10:54:34.067Z",
    "dateUpdated": "2026-07-24T22:02:38.245Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "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.

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GHSA-HW4H-9C69-9Q35

CVE-2026-16280 (GCVE-0-2026-16280)

Tags

Sightings

Nomenclature