High severity · published Jul 19, 2026
CVE-2026-63866
wifi: mt76: mt7996: Clear wcid pointer in mt7996_mac_sta_deinit_link()
8.8
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
6.15 before 6.18.33; 6.19 before 7.0.10 · source: NVD
LI
Linux · Linux
dd82a9e02c054052b5899872c1f32805428f6131 before 455a48685feebf2d9c1656caad77f9ba1da7b06e; dd82a9e02c054052b5899872c1f32805428f6131 before c575459b485c47615491b1fd29f04b43fdc3da56; dd82a9e02c054052b5899872c1f32805428f6131 before 88973240dc7c976dd320b36a9e6d925c9be083ae; 6.15 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-63866
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-63866
Patch
https://git.kernel.org/stable/c/455a48685feebf2d9c1656caad77f9ba1da7b06e
Patch
https://git.kernel.org/stable/c/88973240dc7c976dd320b36a9e6d925c9be083ae
Patch
https://git.kernel.org/stable/c/c575459b485c47615491b1fd29f04b43fdc3da56
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