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CVE-2023-53540

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

MEDIUM
5.5
CVSS Score
Published: October 4, 2025 at 03:16 PM UTC
Updated: October 15, 2026 at 10:17 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
2.6.32 ≤ v < 6.1.556.2 ≤ v < 6.5.519957bb399e2722719c0e20c9ae91cf8b6aaff042.6.32
Vendor states this is fixed in 07added2c6cd63de047bc786b39436322abb67c0 (fixed)
Vendor states this is fixed in 5d4e04bf3a0f098bd9033de3a5291810fa14c7a6 (fixed)
Vendor states this is fixed in 676a423410131d111a264d29aecbe6aadd57fb22 (fixed)
Vendor states this is fixed in 2.6.32 (unaffected)
Vendor states this is fixed in 6.1.55 (unaffected)
Vendor states this is fixed in 6.5.5 (unaffected)
Vendor states this is fixed in 6.6 (unaffected)

References (3)

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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