CVE-2026-80935

CVE CVE-2026-80935EUVD EUVD-2026-76258Published 2026-09-11T19:42:09.000ZLast changed 2026-09-14T11:59:01.000ZCVSS 8.8

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 98686cd21624c75a043e96812beadddf4f6f48e5 <9e5abb5e2ade0b6fd0e47209711115d47a255176; 98686cd21624c75a043e96812beadddf4f6f48e5 <6be59da2063d5b3522bfde8aae0487ec095eb384; 98686cd21624c75a043e96812beadddf4f6f48e5 <13b3c29a782033ce4a230be9e5618032813dbcd4; patch: 7.3-rc1; 6.2; patch: 0; patch: 7.2.4; patch: 6.18.52

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

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