High severity · published Sep 11, 2026
CVE-2026-80933
wifi: mt76: mt7996: validate default EEPROM firmware size
7.8
CVSS
0.1%
EPSS
No
On KEV
Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: mt7996: validate default EEPROM firmware size
The default EEPROM firmware is parsed and copied as a full EEPROM
without checking its length. A truncated file can make the driver
read beyond the firmware buffer during variant validation or the
fallback copy.
Reject files shorter than MT7996_EEPROM_SIZE before parsing or
copying the firmware.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 2% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Linux · Linux
98686cd21624c75a043e96812beadddf4f6f48e5 before b4bf67cc0871b13103c404b38e332b9d4403a0da; 98686cd21624c75a043e96812beadddf4f6f48e5 before 127a291f4c8069a4e71906938402cacfe24ee8cd; 98686cd21624c75a043e96812beadddf4f6f48e5 before 03b81f015dbb29807ce1ec6d45537d658abdac69; 98686cd21624c75a043e96812beadddf4f6f48e5 before 7074ec3769820302f1ccf8794a40a6582153b820; 98686cd21624c75a043e96812beadddf4f6f48e5 before 653c6e289b13cc6942f3e8f8e3c568e70fa42d1f; 6.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80933
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-80933
git.kernel.org
https://git.kernel.org/stable/c/03b81f015dbb29807ce1ec6d45537d658abdac69
git.kernel.org
https://git.kernel.org/stable/c/127a291f4c8069a4e71906938402cacfe24ee8cd
git.kernel.org
https://git.kernel.org/stable/c/653c6e289b13cc6942f3e8f8e3c568e70fa42d1f
git.kernel.org
https://git.kernel.org/stable/c/7074ec3769820302f1ccf8794a40a6582153b820
git.kernel.org
https://git.kernel.org/stable/c/b4bf67cc0871b13103c404b38e332b9d4403a0da
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