CVE-2026-68471

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ieee80211: validate MLE common info length ieee80211_mle_common_size() uses the first common-info octet as the common information length for all known MLE types. However, ieee80211_mle_size_ok() only validates that octet for Basic, Probe Request, and TDLS MLEs. Reconfiguration MLEs also skipped the length octet when calculating the minimum common size, and Priority Access MLEs skipped validation of the advertised common information length. Account for the Reconfiguration common-info length octet and validate the advertised common information length for all known MLE types. Keep unknown-type handling unchanged. [remove now misleading comment]

Severity

HIGH

CVSS score

8.8 (v3.1)

Vulnerability status

Received

Source identifier

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-08-15 06:20:05.433000

Last modified

2026-10-30 13:19:46.330000

View original CVE JSON

{
  "id": "CVE-2026-68471",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-08-15T06:20:05.433",
  "lastModified": "2026-10-30T13:19:46.330",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ieee80211: validate MLE common info length\n\nieee80211_mle_common_size() uses the first common-info octet as the\ncommon information length for all known MLE types. However,\nieee80211_mle_size_ok() only validates that octet for Basic, Probe\nRequest, and TDLS MLEs.\n\nReconfiguration MLEs also skipped the length octet when calculating the\nminimum common size, and Priority Access MLEs skipped validation of the\nadvertised common information length.\n\nAccount for the Reconfiguration common-info length octet and validate\nthe advertised common information length for all known MLE types. Keep\nunknown-type handling unchanged.\n\n[remove now misleading comment]"
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "include/linux/ieee80211-eht.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1",
              "lessThan": "bba41664af19b8a07d3d728855088ae80e47a4b3",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1",
              "lessThan": "181b46e76a218e9345ed7c4cf59dfa69278e4a06",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1",
              "lessThan": "22941b5c5c46e61a7053e5f32f260f2bc39da617",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1",
              "lessThan": "90576bd6921a91eb038bffbb4b9467c2dc26aa1d",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1",
              "lessThan": "2b1589fd9a076727a73bfb39e96622a76415ad32",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1",
              "lessThan": "293baeae9b2434a3e432629d7720b5603db2d77e",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "include/linux/ieee80211-eht.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "6.0",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "6.0",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.1.191",
              "lessThanOrEqual": "6.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.160",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.114",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.40",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.1.5",
              "lessThanOrEqual": "7.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "attackVector": "ADJACENT_NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9
      }
    ]
  },
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/181b46e76a218e9345ed7c4cf59dfa69278e4a06",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/22941b5c5c46e61a7053e5f32f260f2bc39da617",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/293baeae9b2434a3e432629d7720b5603db2d77e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2b1589fd9a076727a73bfb39e96622a76415ad32",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/90576bd6921a91eb038bffbb4b9467c2dc26aa1d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/bba41664af19b8a07d3d728855088ae80e47a4b3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}