CVE-2026-64516

Estado: RecibidaAlta (8.8)—

In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu/vce1: Fix VCE 1 firmware size and offsets

The VCPU BO contains the actual FW at an offset, but it was not calculated into the VCPU BO size. Subtract this from the FW size to make sure there is no out of bounds access.

Make sure the stack and data offsets are aligned to the 32K TLB size.

Check that the FW microcode actually fits in the space that is reserved for it.

(cherry picked from commit c16fe59f622a080fc457a57b3e8f14c780699449)

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Puntuación base: 8.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.17%
Percentil entre todas las CVEs puntuadas: 5
Fecha de la puntuación: 5/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1068 Exploitation for Privilege Escalationprivilege escalation85 %
Impacto principalT1005 Data from Local Systemcollection75 %
Impacto secundarioT1499 Endpoint Denial of Serviceimpact65 %
Impacto secundarioT1565 Data Manipulationimpact70 %

Vulnerabilidad local (AV:L/PR:L) sin interacción que permite acceso fuera de bounds en el kernel de Linux. Escalada de privilegios y acceso a memoria del firmware de VCE.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Threat Intelligence Program Restrict File and Directory Permissions Remote Data Storage Network Segmentation Filter Network Traffic Execution Prevention

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux Kernel^AI

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2026-64516",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 2
      }
    ]
  },
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "d4a640d4b9f34aa9472c71986ef4b5a42dbe4f0f",
              "lessThan": "ce0de178ef08408f6ba8f2e9a13bf52fbe5852f4",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d4a640d4b9f34aa9472c71986ef4b5a42dbe4f0f",
              "lessThan": "3e5a1d5bb2ff061e64c7992f8e5404dfd4c2d0f3",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/vce_v1_0.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.19"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.19",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "7.0.11",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/vce_v1_0.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-07-25T10:17:37.870",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/3e5a1d5bb2ff061e64c7992f8e5404dfd4c2d0f3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ce0de178ef08408f6ba8f2e9a13bf52fbe5852f4",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/vce1: Fix VCE 1 firmware size and offsets\n\nThe VCPU BO contains the actual FW at an offset, but\nit was not calculated into the VCPU BO size.\nSubtract this from the FW size to make sure there is\nno out of bounds access.\n\nMake sure the stack and data offsets are aligned to\nthe 32K TLB size.\n\nCheck that the FW microcode actually fits in the\nspace that is reserved for it.\n\n(cherry picked from commit c16fe59f622a080fc457a57b3e8f14c780699449)"
    }
  ],
  "lastModified": "2026-07-27T05:16:55.983",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}