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CVE-2026-90357

Estado: RecibidaAlta (8.8)—

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

wifi: mt76: mt7915: unlink TWT flow if the MCU rejects the agreement

The flow is added to dev->twt_list before sending the agreement to the firmware, but the error path leaves it linked while flowid_mask is never set. The flow slot can then be reused and memset while still on the list, corrupting twt_list, and station removal leaves a dangling entry behind that mt7915_mac_twt_sched_list_add() later walks.

CVSS

Probabilidad de explotación (EPSS)

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.

Vulnerabilidad en servicio remoto wifi (mt76/mt7915) accesible en red adyacente (AV:A); corrupción de memoria y DoS por manejo incorrecto de flujos TWT sin validación de error.

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 ScanningThreat Intelligence ProgramRestrict File and Directory PermissionsPrivileged Account ManagementRemote Data StorageNetwork Segmentation

Tecnologías afectadas (1)

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

Linux — Linux KernelAI

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-90357",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "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": "3782b69d03e714b8ff98b84c7426d8cef0e64d7c",
              "lessThan": "c09d1b15ed2dc49060303b16a296b7b8b7794cbe",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3782b69d03e714b8ff98b84c7426d8cef0e64d7c",
              "lessThan": "1bd5c4ed2b9045faf83315c54cd37a9b7c71b5c7",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3782b69d03e714b8ff98b84c7426d8cef0e64d7c",
              "lessThan": "cabe239e95b4eebf5b6c3654087b66ff9425bc7b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3782b69d03e714b8ff98b84c7426d8cef0e64d7c",
              "lessThan": "6bce0f1280c94af8314f895f404629da09f0788c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3782b69d03e714b8ff98b84c7426d8cef0e64d7c",
              "lessThan": "beaa42b875965dbc3e80e46970e0bfa60a94c2db",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3782b69d03e714b8ff98b84c7426d8cef0e64d7c",
              "lessThan": "16a04441eab0dcd4d7126a6f66b370adbf28f96d",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7915/mac.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.16"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.16",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7915/mac.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-17T17:17:34.590",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/16a04441eab0dcd4d7126a6f66b370adbf28f96d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/1bd5c4ed2b9045faf83315c54cd37a9b7c71b5c7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6bce0f1280c94af8314f895f404629da09f0788c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/beaa42b875965dbc3e80e46970e0bfa60a94c2db",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c09d1b15ed2dc49060303b16a296b7b8b7794cbe",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/cabe239e95b4eebf5b6c3654087b66ff9425bc7b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7915: unlink TWT flow if the MCU rejects the agreement\n\nThe flow is added to dev->twt_list before sending the agreement to the\nfirmware, but the error path leaves it linked while flowid_mask is\nnever set. The flow slot can then be reused and memset while still on\nthe list, corrupting twt_list, and station removal leaves a dangling\nentry behind that mt7915_mac_twt_sched_list_add() later walks."
    }
  ],
  "lastModified": "2026-09-18T18:17:55.160",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}