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Vulnerability · Published Sep 24, 2026 · Assigned by Linux

CVE-2026-97518wifi: cfg80211: reject duplicate wiphy cipher suite entries

Unrated

In plain English

A 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 5% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS )–Not rated
Exploit odds (30 days)0.2%top 95.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: reject duplicate wiphy cipher suite entries Duplicate entries in wiphy->cipher_suites do not describe any additional capability, but cfg80211 currently accepts them and leaves individual consumers to deal with them. One such consumer is the WEXT compatibility code, which appends a WEP key length for each WEP cipher entry it sees. Repeated WEP entries can therefore overflow the fixed iw_range::encoding_size array returned by SIOCGIWRANGE. Reject duplicate cipher suite entries in wiphy_register() instead. This keeps the cipher suite invariant in one place and makes malformed wiphy descriptions fail early with -EINVAL, rather than relying on a single cfg80211 user to handle duplicates correctly.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2026-97518
Debian:13linux6.12.111-1DEBIAN-CVE-2026-97518
Debian:14linux7.2.6-1DEBIAN-CVE-2026-97518
Debian:12linux-6.126.12.111-1~deb12u1DEBIAN-CVE-2026-97518
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-97518
Ubuntu:26.04:LTSlinux7.0.0-42.42UBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-97518
Ubuntu:26.04:LTSlinux-aws7.0.0-1016.17UBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-97518
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-97518
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-97518
Ubuntu:26.04:LTSlinux-gcp7.0.0-1016.18UBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-97518
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-hwe-7.07.0.0-42.42~24.04.1UBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-97518
Ubuntu:26.04:LTSlinux-ibm7.0.0-1017.17UBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-97518
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-97518
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-97518
Ubuntu:26.04:LTSlinux-oem-7.07.0.0-1017.17UBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-97518
Ubuntu:26.04:LTSlinux-oracle7.0.0-1015.16UBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-97518
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-97518
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-97518
Ubuntu:26.04:LTSlinux-riscv7.0.0-42.42.1UBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-riscv-7.07.0.0-42.42.1~24.04.1UBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-97518
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-97518
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2026-97518

Affected products (as reported)

VendorProductVersions
Linux Linux 2ab658f9ce218ae93b3d2db2b3fe68bfefb81196 – before 539d7f795bf0c41fb533c99e6010cdfaf5a1b6a62ab658f9ce218ae93b3d2db2b3fe68bfefb81196 – before d12e92e72db914e1ea777c6f246f6be75985438e2ab658f9ce218ae93b3d2db2b3fe68bfefb81196 – before 1305f8b925fe92edf5fec183588dfc7db719180b2ab658f9ce218ae93b3d2db2b3fe68bfefb81196 – before 4cbb2360f4d8c29e67bc7a8bf6ba0ae0965839232ab658f9ce218ae93b3d2db2b3fe68bfefb81196 – before 7187d145d9042b037e4f10538f70cf95e380219f
Linux Linux 2.6.32

References