CVE-2023-53540

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.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.2

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/07added2c6cd63de047bc786b39436322abb67c0	Patch
https://git.kernel.org/stable/c/5d4e04bf3a0f098bd9033de3a5291810fa14c7a6	Patch
https://git.kernel.org/stable/c/676a423410131d111a264d29aecbe6aadd57fb22	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2025-10-04 16:15

Updated : 2026-08-04 10:19

NVD link : CVE-2023-53540

Mitre link : CVE-2023-53540

CVE.ORG link : CVE-2023-53540

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

{"id": "CVE-2023-53540", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 4.2, "exploitabilityScore": 2.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "19957bb399e2722719c0e20c9ae91cf8b6aaff04", "lessThan": "676a423410131d111a264d29aecbe6aadd57fb22", "versionType": "git"}, {"status": "affected", "version": "19957bb399e2722719c0e20c9ae91cf8b6aaff04", "lessThan": "07added2c6cd63de047bc786b39436322abb67c0", "versionType": "git"}, {"status": "affected", "version": "19957bb399e2722719c0e20c9ae91cf8b6aaff04", "lessThan": "5d4e04bf3a0f098bd9033de3a5291810fa14c7a6", "versionType": "git"}], "programFiles": ["net/wireless/mlme.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "2.6.32"}, {"status": "unaffected", "version": "0", "lessThan": "2.6.32", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.55", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.5.5", "versionType": "semver", "lessThanOrEqual": "6.5.*"}, {"status": "unaffected", "version": "6.6", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/wireless/mlme.c"], "defaultStatus": "affected"}]}], "published": "2025-10-04T16:15:49.050", "references": [{"url": "https://git.kernel.org/stable/c/07added2c6cd63de047bc786b39436322abb67c0", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/5d4e04bf3a0f098bd9033de3a5291810fa14c7a6", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/676a423410131d111a264d29aecbe6aadd57fb22", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "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's wrong. Reject such connections so we don't\ntry and fail later."}], "lastModified": "2026-08-04T10:19:11.457", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9F5010F3-A8FF-4EAB-8573-5EF072D03ACE", "versionEndExcluding": "6.1.55", "versionStartIncluding": "2.6.32"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8CF71E85-DA24-4925-95C5-E5C15DA71AE6", "versionEndExcluding": "6.5.5", "versionStartIncluding": "6.2"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}