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CVE-2023-53540

wifi: cfg80211: reject auth/assoc to AP with our address

High7.1EPSS 0.20%
Published
Updated
Reserved
Assigned by
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: reject auth/assoc to AP with our address If the AP uses our own address as its MLD address or BSSID, then clearly something's wrong. Reject such connections so we don't try and fail later.

Timeline

  1. ID reserved

    By Linux

  2. Published

  3. · 13 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2023-53540, by who scored it
Scored byCVSSScoreVector
LinuxCNA (assigner)3.1High7.1CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
NVDNVD · Modified3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.20% · top 90% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.

Affected products

  • Linux · Linux

    • affected 19957bb399e2722719c0e20c9ae91cf8b6aaff04 – < 676a423410131d111a264d29aecbe6aadd57fb22
    • affected 19957bb399e2722719c0e20c9ae91cf8b6aaff04 – < 07added2c6cd63de047bc786b39436322abb67c0
    • affected 19957bb399e2722719c0e20c9ae91cf8b6aaff04 – < 5d4e04bf3a0f098bd9033de3a5291810fa14c7a6

  • Linux · Linux

    • affected 2.6.32
    • unaffected < 2.6.32
    • unaffected 6.1.55 – ≤ 6.1.*
    • unaffected 6.5.5 – ≤ 6.5.*
    • unaffected 6.6 – ≤ *

References (3)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .