What’s Vulnerable › Vulnerabilities

CVE-2026-68406: wifi: cfg80211: validate PMSR FTM preamble range

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-10 · updated 2026-08-19

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: validate PMSR FTM preamble range PMSR FTM request parsing accepts preamble values outside the enumerated nl80211 preamble range. Reject out-of-range values before using them in the parser capability bit test using the policy. [drop unnecessary check]

Affected products

• Linux kernel: 5.0 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/2b97fa1bce7731f6a244f3d4407c61858f09b93f
• https://git.kernel.org/stable/c/36230936468f0ba4930e94aef496fc229d4bb951
• https://git.kernel.org/stable/c/44ea65d779e2d23b2264fea6af2d0c666a3ec9fb
• https://git.kernel.org/stable/c/58320cb47df2accc7a20bb72c0150280732fa58f
• https://git.kernel.org/stable/c/73ada9f23c2c7fac74474ea2a38ceb265bae17f1
• https://git.kernel.org/stable/c/922d71fbaf99c1d5318151a0cb0a42ad448d07d9
• https://git.kernel.org/stable/c/9b33f260db3971f572dda0b45dd28d477cf51ed1
• https://git.kernel.org/stable/c/cfbda103aeae61071a122a6fc2bfe98cffbd7165

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