CVE-2026-90357 Linux kernel mt76 mt7915 - Use After Free

Linux kernel mt76 mt7915 contains a use-after-free vulnerability caused by improper unlinking of TWT flow when MCU rejects the agreement, letting attackers cause memory corruption and dangling pointer dereference, exploit requires specific firmware interaction.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.34% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Use After Free
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
17 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version containing the fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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