What’s Vulnerable › Vulnerabilities

CVE-2026-63866: wifi: mt76: mt7996: Clear wcid pointer in mt7996_mac_sta_deinit_link()

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-19 · updated 2026-10-26

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: Clear wcid pointer in mt7996_mac_sta_deinit_link() Clear WCID pointer removing the sta link in mt7996_mac_sta_deinit_link routine.

Affected products

• Linux kernel: from 6.15 before 6.18.33; from 6.19 before 7.0.10 — fixed in 6.18.33, 7.0.10
• Linux kernel: 6.15 — fixed in 7.1

How to fix

Upgrade to a fixed version: Linux kernel 6.18.33, 7.0.10; Linux kernel 7.1. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/455a48685feebf2d9c1656caad77f9ba1da7b06e
• https://git.kernel.org/stable/c/88973240dc7c976dd320b36a9e6d925c9be083ae
• https://git.kernel.org/stable/c/c575459b485c47615491b1fd29f04b43fdc3da56

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