CVE-2026-80935

linux: In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: bound the device EEPROM addr...

CVE-2026-80935 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-80935, released September 23, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
8.8
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0026
17th percentile

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: bound the device EEPROM address before the EFUSE copy mt7996_mcu_get_eeprom() derives the destination of the EFUSE/EXT block copy from the address reported by the MCU response (event->addr, a device-controlled __le32) and clamps only the copy length, never the destination offset into dev->mt76.eeprom.data. A malicious or malfunctioning device can report an arbitrary address and drive an out-of-bounds write of up to MT7996_EXT_EEPROM_BLOCK_SIZE bytes 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.

Where it's fixed

ProductFixed inFixReleased
Linux
linux · Debian 13.5 (trixie) 6.12.113-1 DEBIAN-CVE-2026-80935 Sep 23, 2026
linux · Debian 14 7.2.6-1 DEBIAN-CVE-2026-80935 Sep 23, 2026
linux-6.12 · Debian 12.15 (bookworm) 6.12.113-1~deb12u1 DEBIAN-CVE-2026-80935 Sep 23, 2026

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