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CVE-2026-80933

wifi: mt76: mt7996: validate default EEPROM firmware size

HIGH
7.8
CVSS Score
Published: September 11, 2026 at 07:42 PM UTC
Updated: October 19, 2026 at 09:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
6.298686cd21624c75a043e96812beadddf4f6f48e5
Vendor states this is fixed in 03b81f015dbb29807ce1ec6d45537d658abdac69 (fixed)
Vendor states this is fixed in 127a291f4c8069a4e71906938402cacfe24ee8cd (fixed)
Vendor states this is fixed in 653c6e289b13cc6942f3e8f8e3c568e70fa42d1f (fixed)
Vendor states this is fixed in 7074ec3769820302f1ccf8794a40a6582153b820 (fixed)
Vendor states this is fixed in b4bf67cc0871b13103c404b38e332b9d4403a0da (fixed)
Vendor states this is fixed in 6.12.110 (unaffected)
Vendor states this is fixed in 6.18.50 (unaffected)
Vendor states this is fixed in 6.2 (unaffected)
Vendor states this is fixed in 6.6.157 (unaffected)
Vendor states this is fixed in 7.2.4 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

Source: cverecord
https://git.kernel.org/stable/c/03b81f015dbb29807ce1ec6d45537d658abdac69
Source: cverecord
https://git.kernel.org/stable/c/7074ec3769820302f1ccf8794a40a6582153b820
Source: cverecord
https://git.kernel.org/stable/c/653c6e289b13cc6942f3e8f8e3c568e70fa42d1f
Source: cverecord
https://git.kernel.org/stable/c/b4bf67cc0871b13103c404b38e332b9d4403a0da
Source: cverecord
https://git.kernel.org/stable/c/127a291f4c8069a4e71906938402cacfe24ee8cd

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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