CVE-2026-80937wifi: mt76: mt7915: bound the device EEPROM address before the EFUSE copy
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 3, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from e57b7901469fc0b021930b83a8094baaf3d81b09 before 394e8cb56fc732d71041599cdb4e01f82cfd11c5; from e57b7901469fc0b021930b83a8094baaf3d81b09 before 5fdaf7016d7684ef756a229fd5d96b4a140eeb40; from e57b7901469fc0b021930b83a8094baaf3d81b09 before 5f48b0d752a76590e2c613aae5345c2474627d1b; from e57b7901469fc0b021930b83a8094baaf3d81b09 before 44b5adfe49499f53002737f5fe81d608c08122fc | CNA record |
References
- https://git.kernel.org/stable/c/394e8cb56fc732d71041599cdb4e01f82cfd11c5
- https://git.kernel.org/stable/c/5fdaf7016d7684ef756a229fd5d96b4a140eeb40
- https://git.kernel.org/stable/c/5f48b0d752a76590e2c613aae5345c2474627d1b
- https://git.kernel.org/stable/c/44b5adfe49499f53002737f5fe81d608c08122fc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.