CVE-2026-80933 Linux kernel mt76 - Out of Bounds Read

Linux kernel mt76 mt7996 driver contains a buffer overflow caused by lack of length validation of default EEPROM firmware, letting attackers cause out-of-bounds read, exploit requires supplying truncated firmware file.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.13% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Out of Bounds Read
Impact
Information Disclosure, Denial Of Service
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
11 September 2026
Updated
15 October 2026

Vendor fix

Update to a version that rejects EEPROM files shorter than MT7996_EEPROM_SIZE or latest kernel version.

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

← All CVEs