{"schema_version":"1.9.0","id":"CVE-2023-53540","published":"2025-10-04T15:16:50.079Z","modified":"2026-08-12T03:51:30.401573284Z","related":["SUSE-SU-2025:21040-1","SUSE-SU-2025:21052-1","SUSE-SU-2025:21056-1","SUSE-SU-2025:21064-1","SUSE-SU-2025:4057-1","SUSE-SU-2025:4128-1","SUSE-SU-2025:4132-1","SUSE-SU-2025:4140-1","SUSE-SU-2025:4141-1","SUSE-SU-2025:4189-1","SUSE-SU-2025:4301-1"],"summary":"wifi: cfg80211: reject auth/assoc to AP with our address","details":"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's wrong. Reject such connections so we don't\ntry and fail later.","affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"19957bb399e2722719c0e20c9ae91cf8b6aaff04"},{"fixed":"676a423410131d111a264d29aecbe6aadd57fb22"},{"fixed":"07added2c6cd63de047bc786b39436322abb67c0"},{"fixed":"5d4e04bf3a0f098bd9033de3a5291810fa14c7a6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53540.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.6.32"},{"fixed":"6.1.55"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.5.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53540.json"}}],"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/07added2c6cd63de047bc786b39436322abb67c0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5d4e04bf3a0f098bd9033de3a5291810fa14c7a6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/676a423410131d111a264d29aecbe6aadd57fb22"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53540.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53540"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53540.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"}]}