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CVE-2025-6349

Status: AnalyzedMedium (5.1)—

Use After Free vulnerability in Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform improper GPU memory processing operations to gain access to already freed memory.This issue affects Valhall GPU Kernel Driver: from r53p0 through r54p1; Arm 5th Gen GPU Architecture Kernel Driver: from r53p0 through r54p1.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (2)

ARM — 5TH GEN GPU Architecture Kernel DriverARM — Valhall GPU Kernel Driver

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2025-6349",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-6349",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-12-01T18:07:59.248387Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.1,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.5,
        "exploitabilityScore": 2.5
      }
    ]
  },
  "affected": [
    {
      "source": "arm-security@arm.com",
      "affectedData": [
        {
          "vendor": "Arm Ltd",
          "product": "Valhall GPU Kernel Driver",
          "versions": [
            {
              "status": "affected",
              "changes": [
                {
                  "at": "r54p2",
                  "status": "unaffected"
                },
                {
                  "at": "r55p0",
                  "status": "unaffected"
                }
              ],
              "version": "r53p0",
              "versionType": "patch",
              "lessThanOrEqual": "r54p1"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Arm Ltd",
          "product": "Arm 5th Gen GPU Architecture Kernel Driver",
          "versions": [
            {
              "status": "affected",
              "changes": [
                {
                  "at": "r54p2",
                  "status": "unaffected"
                },
                {
                  "at": "r55p0",
                  "status": "unaffected"
                }
              ],
              "version": "r53p0",
              "versionType": "patch",
              "lessThanOrEqual": "r54p1"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2025-12-01T11:15:48.563",
  "references": [
    {
      "url": "https://developer.arm.com/documentation/110697/latest/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "arm-security@arm.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "arm-security@arm.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Use After Free vulnerability in Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform improper GPU memory processing operations to gain access to already freed memory.This issue affects Valhall GPU Kernel Driver: from r53p0 through r54p1; Arm 5th Gen GPU Architecture Kernel Driver: from r53p0 through r54p1."
    }
  ],
  "lastModified": "2026-06-17T10:01:40.453",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:arm:5th_gen_gpu_architecture_kernel_driver:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AE0AA27E-761F-4C91-AA08-31D69650C0EF",
              "versionEndExcluding": "r54p2",
              "versionStartIncluding": "r53p0"
            },
            {
              "criteria": "cpe:2.3:a:arm:valhall_gpu_kernel_driver:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6AF0D8A4-4D26-4AB5-987D-BE23979E74D3",
              "versionEndExcluding": "r54p2",
              "versionStartIncluding": "r53p0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "arm-security@arm.com"
}