{
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          "programFiles": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: reject auth/assoc to AP with our address\n\nIf the AP uses our own address as its MLD address or BSSID, then\nclearly something\u0027s wrong. Reject such connections so we don\u0027t\ntry and fail later."
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            {
              "lang": "en",
              "value": "AV:A - The BSS parameters that trigger the bug originate from attacker-transmitted beacon/probe-response frames, which cfg80211 accepts into the scan cache without rejecting a BSSID equal to a local interface address; an attacker in WiFi range can therefore induce the victim\u0027s SME to auth/assoc to a self-addressed BSS. Per WiFi frame-injection guidance this is Adjacent.\nAC:L - The attacker fully controls the beacon\u0027s BSSID/MLD address and SSID, and the victim STA\u0027s MAC address is passively observable from its probe requests; the victim\u0027s connection attempt is routine auto-join behavior that the attacker can force by deauthing it from its real AP.\nPR:N - A rogue AP needs no credentials or prior association with the victim, and the failure occurs in the pre-authentication auth/assoc path before any key exchange.\nUI:N - Automatic reconnection to a known/matching SSID by wpa_supplicant or the kernel SME requires no human action, and the attacker can trigger it on demand with a deauth.\nS:U - The WARN_ON and the corrupted MLME state are entirely within the kernel\u0027s own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:N - No out-of-bounds read, uninitialized memory disclosure, or other read primitive is created; the attacker gains no access to kernel or user data.\nI:L - The attacker\u0027s rogue BSS causes mac80211 to tear down the legitimate association and leaves inconsistent state behind (`vif.cfg.ap_addr` set to the interface\u0027s own address, and in the MLO case a link_sta bearing our own address inserted into `local-\u003elink_sta_hash`), a bounded modification of kernel connection state rather than arbitrary write.\nA:H - The path reaches `WARN_ON()` in `sta_info_insert_check()`, which is a kernel panic on the many deployments running `panic_on_warn=1`, and can be triggered repeatedly to persistently deny WiFi connectivity."
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        "dateUpdated": "2026-08-05T09:14:43.616Z",
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        "shortName": "Linux"
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        {
          "url": "https://git.kernel.org/stable/c/5d4e04bf3a0f098bd9033de3a5291810fa14c7a6"
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      "title": "wifi: cfg80211: reject auth/assoc to AP with our address",
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    "assignerShortName": "Linux",
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    "datePublished": "2025-10-04T15:16:50.079Z",
    "dateReserved": "2025-10-04T15:14:15.919Z",
    "dateUpdated": "2026-08-05T09:14:43.616Z",
    "state": "PUBLISHED"
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-04T19:18:28+00:00",
      "cve": "CVE-2023-53540",
      "id": "CVE-2023-53540",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_affected": "198",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: wifi: cfg80211: reject auth/assoc to AP with our address",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53540.json",
      "version": "3"
    }
  }
}