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Vulnerability · Published Oct 4, 2025 · Assigned by Linux

CVE-2023-53540wifi: cfg80211: reject auth/assoc to AP with our address

High 7.1

In plain English

A high-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.1High
Exploit odds (30 days)0.2%top 90.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.55-1DEBIAN-CVE-2023-53540
Debian:13linux6.5.6-1DEBIAN-CVE-2023-53540
Debian:14linux6.5.6-1DEBIAN-CVE-2023-53540
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-53540
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-53540
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-53540
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2023-53540
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-53540
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-53540
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2023-53540
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2023-53540
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-53540
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-53540
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2023-53540
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2023-53540

Affected products (as reported)

VendorProductVersions
Linux Linux 19957bb399e2722719c0e20c9ae91cf8b6aaff04 – before 676a423410131d111a264d29aecbe6aadd57fb2219957bb399e2722719c0e20c9ae91cf8b6aaff04 – before 07added2c6cd63de047bc786b39436322abb67c019957bb399e2722719c0e20c9ae91cf8b6aaff04 – before 5d4e04bf3a0f098bd9033de3a5291810fa14c7a6
Linux Linux 2.6.32

References