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CVE-2025-71227

Estado: AnalizadaMedia (5.5)—

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

wifi: mac80211: don't WARN for connections on invalid channels

It's not clear (to me) how exactly syzbot managed to hit this, but it seems conceivable that e.g. regulatory changed and has disabled a channel between scanning (channel is checked to be usable by cfg80211_get_ies_channel_number) and connecting on the channel later.

With one scenario that isn't covered elsewhere described above, the warning isn't good, replace it with a (more informative) error message.

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).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-71227",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "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": "f2d9d270c15ae0139b54a7e7466d738327e97e03",
              "lessThan": "10d3ff7e5812c8d70300f6fa8f524009a06aa7e1",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f2d9d270c15ae0139b54a7e7466d738327e97e03",
              "lessThan": "99067b58a408a384d2a45c105eb3dce980a862ce",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "net/mac80211/mlme.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.8"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "3.8",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.18.10",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "net/mac80211/mlme.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-02-18T15:18:40.563",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/10d3ff7e5812c8d70300f6fa8f524009a06aa7e1",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/99067b58a408a384d2a45c105eb3dce980a862ce",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: don't WARN for connections on invalid channels\n\nIt's not clear (to me) how exactly syzbot managed to hit this,\nbut it seems conceivable that e.g. regulatory changed and has\ndisabled a channel between scanning (channel is checked to be\nusable by cfg80211_get_ies_channel_number) and connecting on\nthe channel later.\n\nWith one scenario that isn't covered elsewhere described above,\nthe warning isn't good, replace it with a (more informative)\nerror message."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nwifi: mac80211: no advertir para conexiones en canales inválidos\n\nNo está claro (para mí) cómo exactamente syzbot logró activar esto,\npero parece concebible que, por ejemplo, la regulación cambió y ha\ndeshabilitado un canal entre el escaneo (se verifica que el canal sea\nutilizable por cfg80211_get_ies_channel_number) y la conexión en\nel canal más tarde.\n\nCon un escenario que no está cubierto en otro lugar descrito anteriormente,\nla advertencia no es buena, reemplázala con un mensaje de error (más informativo)."
    }
  ],
  "lastModified": "2026-06-17T10:03:54.660",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4F873268-7218-45AB-893B-13DC64693383",
              "versionEndExcluding": "6.18.10",
              "versionStartIncluding": "3.8"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "17B67AA7-40D6-4AFA-8459-F200F3D7CFD1"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C47E4CC9-C826-4FA9-B014-7FE3D9B318B2"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F71D92C0-C023-48BD-B3B6-70B638EEE298"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}