CVE-2026-74693

Estado: RecibidaSin puntuar—

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

net: prestera: validate firmware header length

prestera_fw_hdr_parse() reads the firmware header before checking that the firmware image contains that header.

Reject images shorter than struct prestera_fw_header before decoding the magic and version fields.

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.22%
Percentil entre todas las CVEs puntuadas: 11
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).

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-2026-74693",
  "cveTags": [],
  "metrics": {},
  "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": "4c2703dfd7fabb0824b3bc345f9fa47e33248c14",
              "lessThan": "38a3afbf9fd8a2e8c47fa3ca47b425a8a9623240",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4c2703dfd7fabb0824b3bc345f9fa47e33248c14",
              "lessThan": "0fbcceb9d19f2d1dcdf099aee590f2517cb718bb",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4c2703dfd7fabb0824b3bc345f9fa47e33248c14",
              "lessThan": "e0f382e8084117f0b11ffb070fe1079e38c0d7f9",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4c2703dfd7fabb0824b3bc345f9fa47e33248c14",
              "lessThan": "6fad06bb793d7089ae05b9fcf46e11be2dfe4850",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4c2703dfd7fabb0824b3bc345f9fa47e33248c14",
              "lessThan": "470ac9cce7308e60cf2dceb448749cdd006e73de",
              "versionType": "git"
            },
            {
              "status": "affected",
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              "lessThan": "363e048a9d0a6c245cbc348c8a220170afed046a",
              "versionType": "git"
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            {
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              "versionType": "git"
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              "lessThan": "8ae344eb540af3f457179b52bc6061416752485c",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/marvell/prestera/prestera_pci.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.10"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.10",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.265",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.216",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.183",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.152",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.104",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.45",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.1.9",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/marvell/prestera/prestera_pci.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-22T16:16:43.807",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0fbcceb9d19f2d1dcdf099aee590f2517cb718bb",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/363e048a9d0a6c245cbc348c8a220170afed046a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/38a3afbf9fd8a2e8c47fa3ca47b425a8a9623240",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/470ac9cce7308e60cf2dceb448749cdd006e73de",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6fad06bb793d7089ae05b9fcf46e11be2dfe4850",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7fa8a12296d8d5aa4b1c3904f0b354d81124cf29",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8ae344eb540af3f457179b52bc6061416752485c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e0f382e8084117f0b11ffb070fe1079e38c0d7f9",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: prestera: validate firmware header length\n\nprestera_fw_hdr_parse() reads the firmware header before checking\nthat the firmware image contains that header.\n\nReject images shorter than struct prestera_fw_header before decoding the\nmagic and version fields."
    }
  ],
  "lastModified": "2026-08-22T16:16:43.807",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}