CVE-2023-53540
CVE-2023-53540 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- EPSS exploit prediction: 0% (4th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-32346
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2023-53540?
- CVE-2023-53540 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2023-53540 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-53540?
- CVE-2023-53540 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-53540?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2023-53540 have an EU (EUVD) identifier?
- Yes. CVE-2023-53540 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-32346.
- When was CVE-2023-53540 published?
- CVE-2023-53540 was published on 2025-10-04 and last updated on 2026-06-17.
References
- https://git.kernel.org/stable/c/07added2c6cd63de047bc786b39436322abb67c0
- https://git.kernel.org/stable/c/5d4e04bf3a0f098bd9033de3a5291810fa14c7a6
- https://git.kernel.org/stable/c/676a423410131d111a264d29aecbe6aadd57fb22
Affected products (1)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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