High severity · published Sep 11, 2026
CVE-2026-80937
wifi: mt76: mt7915: bound the device EEPROM address before the EFUSE copy
8.8
CVSS
0.3%
EPSS
No
On KEV
Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: mt7915: bound the device EEPROM address before the EFUSE copy
mt7915_mcu_get_eeprom() copies a fixed EFUSE block into the driver's
dev->mt76.eeprom.data buffer at the offset reported by the MCU response
(res->addr, a device-controlled __le32) without checking it against the
buffer size. A malicious or malfunctioning device can report an arbitrary
address and drive a 16-byte out-of-bounds write past eeprom.data.
Reject a response whose address would place the copy outside eeprom.data
before deriving the destination pointer. Devices that echo the requested
in-bounds offset are unaffected.
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)0.3% · higher than 28% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Linux · Linux
e57b7901469fc0b021930b83a8094baaf3d81b09 before d6774f6af3711143a93281904a928a78652c8b7e; e57b7901469fc0b021930b83a8094baaf3d81b09 before 394e8cb56fc732d71041599cdb4e01f82cfd11c5; e57b7901469fc0b021930b83a8094baaf3d81b09 before 5fdaf7016d7684ef756a229fd5d96b4a140eeb40; e57b7901469fc0b021930b83a8094baaf3d81b09 before 5f48b0d752a76590e2c613aae5345c2474627d1b; e57b7901469fc0b021930b83a8094baaf3d81b09 before 44b5adfe49499f53002737f5fe81d608c08122fc; 5.8 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80937
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-80937
git.kernel.org
https://git.kernel.org/stable/c/d6774f6af3711143a93281904a928a78652c8b7e
git.kernel.org
https://git.kernel.org/stable/c/394e8cb56fc732d71041599cdb4e01f82cfd11c5
git.kernel.org
https://git.kernel.org/stable/c/5fdaf7016d7684ef756a229fd5d96b4a140eeb40
git.kernel.org
https://git.kernel.org/stable/c/5f48b0d752a76590e2c613aae5345c2474627d1b
git.kernel.org
https://git.kernel.org/stable/c/44b5adfe49499f53002737f5fe81d608c08122fc
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