BaseFortify

Publication date: 2025-10-04

Last updated on: 2026-04-06

Assigner: kernel.org

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.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-10-04

Last Modified

2026-04-06

Generated

2026-07-06

AI Q&A

2025-10-04

EPSS Evaluated

2026-07-05

NVD

CVE-2023-53540

Affected Vendors & Products

Vendor	Product	Version / Range
linux	linux_kernel	From 6.2 (inc) to 6.5.5 (exc)
linux	linux_kernel	From 2.6.32 (inc) to 6.1.55 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability in the Linux kernel's wifi subsystem (cfg80211) involves accepting authentication or association requests to an access point (AP) that uses the device's own address as its MLD address or BSSID. This is an incorrect scenario, and the vulnerability was that such connections were not properly rejected, potentially causing connection failures later. The fix ensures that such connections are rejected immediately.

Impact Analysis

If an AP uses the device's own address as its MLD address or BSSID, the device might attempt to connect and fail later, causing connectivity issues or degraded wifi performance. Rejecting such connections prevents these failures and improves network stability.

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