CVE-2026-74280

Estado: RecibidaCrítica (10)—

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

crypto: marvell/octeontx - fix DMA cleanup using wrong loop index

The sg_cleanup path used list[i] instead of list[j] when unmapping DMA buffers, leaking successfully mapped entries and repeatedly unmapping the failed one.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Puntuación base: 10

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.76%
Percentil entre todas las CVEs puntuadas: 54
Fecha de la puntuación: 6/10/2026

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.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access75 %

Vector CVSS:3.1/AV:N/AC:L/PR:N indica acceso remoto sin privilegios → T1190. DMA cleanup incorrecto causa fuga de memoria y corrupción de datos, permitiendo DoS o manipulación. Confianza 60-55 por falta de detalles explícitos.

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

Vulnerability Scanning Privileged Account Management Network Segmentation Limit Access to Resource Over Network Filter Network Traffic Application Isolation and Sandboxing

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-2026-74280",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 10,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "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": "10b4f09491bfeb0b298cb2f49df585510ee6189a",
              "lessThan": "97f150ba3e372256eabb93bd80c2cf3740077fb5",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "10b4f09491bfeb0b298cb2f49df585510ee6189a",
              "lessThan": "8a0db9fad3c97e6447a92417cb95d7c55eaa9530",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "10b4f09491bfeb0b298cb2f49df585510ee6189a",
              "lessThan": "8d301e5a51173ba56ce4f632a2a33bf6b14b0fcf",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "10b4f09491bfeb0b298cb2f49df585510ee6189a",
              "lessThan": "ed374dbc70c10c4a864414b3d9c257faec8fd485",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "10b4f09491bfeb0b298cb2f49df585510ee6189a",
              "lessThan": "6c721a3e43344f8560ee4ef506fc1f72b4646dcd",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "10b4f09491bfeb0b298cb2f49df585510ee6189a",
              "lessThan": "5f99a396f706afc749448659d1565991330e4f71",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "10b4f09491bfeb0b298cb2f49df585510ee6189a",
              "lessThan": "acff30cfc0d72465b51b0bfdf019f1cb54e15314",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "10b4f09491bfeb0b298cb2f49df585510ee6189a",
              "lessThan": "7891c64c0520519782470ba29bac8a5761e295d8",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/crypto/marvell/octeontx/otx_cptvf_reqmgr.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.7"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.7",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/crypto/marvell/octeontx/otx_cptvf_reqmgr.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-15T06:22:27.430",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/5f99a396f706afc749448659d1565991330e4f71",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6c721a3e43344f8560ee4ef506fc1f72b4646dcd",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7891c64c0520519782470ba29bac8a5761e295d8",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8a0db9fad3c97e6447a92417cb95d7c55eaa9530",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8d301e5a51173ba56ce4f632a2a33bf6b14b0fcf",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/97f150ba3e372256eabb93bd80c2cf3740077fb5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/acff30cfc0d72465b51b0bfdf019f1cb54e15314",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ed374dbc70c10c4a864414b3d9c257faec8fd485",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: marvell/octeontx - fix DMA cleanup using wrong loop index\n\nThe sg_cleanup path used list[i] instead of list[j] when unmapping DMA\nbuffers, leaking successfully mapped entries and repeatedly unmapping\nthe failed one."
    }
  ],
  "lastModified": "2026-08-17T06:19:21.733",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}