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CVE-2026-23040 (GCVE-0-2026-23040)

Vulnerability from cvelistv5 – Published: 2026-02-04 16:00 – Updated: 2026-05-11 21:58
VLAI
Title
wifi: mac80211_hwsim: fix typo in frequency notification
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211_hwsim: fix typo in frequency notification The NAN notification is for 5745 MHz which corresponds to channel 149 and not 5475 which is not actually a valid channel. This could result in a NULL pointer dereference in cfg80211_next_nan_dw_notif.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: a37a6f54439bf82b827a7072415d3a4afa4e12bd , < 1251bbdb8f5b2ea86ca9b4268a2e6aa34372ab33 (git)
Affected: a37a6f54439bf82b827a7072415d3a4afa4e12bd , < 333418872bfecf4843f1ded7a4151685dfcf07d5 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.18
Unaffected: 0 , < 6.18 (semver)
Unaffected: 6.18.6 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/virtual/mac80211_hwsim.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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            },
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            }
          ]
        },
        {
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          ],
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            },
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              "versionType": "semver"
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            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.6",
                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19",
                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211_hwsim: fix typo in frequency notification\n\nThe NAN notification is for 5745 MHz which corresponds to channel 149\nand not 5475 which is not actually a valid channel. This could result in\na NULL pointer dereference in cfg80211_next_nan_dw_notif."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:58:50.390Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/1251bbdb8f5b2ea86ca9b4268a2e6aa34372ab33"
        },
        {
          "url": "https://git.kernel.org/stable/c/333418872bfecf4843f1ded7a4151685dfcf07d5"
        }
      ],
      "title": "wifi: mac80211_hwsim: fix typo in frequency notification",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23040",
    "datePublished": "2026-02-04T16:00:23.897Z",
    "dateReserved": "2026-01-13T15:37:45.944Z",
    "dateUpdated": "2026-05-11T21:58:50.390Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-23040",
      "date": "2026-09-15",
      "epss": "0.0015",
      "percentile": "0.0456"
    },
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T07:18:19+00:00",
      "cve": "CVE-2026-23040",
      "id": "CVE-2026-23040",
      "initial_release_date": "2026-02-04T00:00:00+00:00",
      "product_status:fixed": "612",
      "product_status:known_affected": "22",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: wifi: mac80211_hwsim: fix typo in frequency notification",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23040.json",
      "version": "3"
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    "suse_vex": {
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      "current_release_date": "2026-08-07T23:55:39Z",
      "cve": "CVE-2026-23040",
      "id": "CVE-2026-23040",
      "initial_release_date": "2026-02-05T00:26:00Z",
      "product_status:known_not_affected": "336",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-23040",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-23040.json",
      "version": "7"
    }
  }
}



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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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