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Vulnerability · Published Sep 11, 2026 · Assigned by Linux

CVE-2026-80933wifi: mt76: mt7996: validate default EEPROM firmware size

High 7.8

In plain English

A high-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.1%top 97.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13linux6.12.111-1DEBIAN-CVE-2026-80933
Debian:14linux7.2.6-1DEBIAN-CVE-2026-80933
Debian:12linux-6.126.12.111-1~deb12u1DEBIAN-CVE-2026-80933
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-80933
Ubuntu:26.04:LTSlinux7.0.0-42.42UBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-80933
Ubuntu:26.04:LTSlinux-aws7.0.0-1016.17UBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-80933
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-80933
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-80933
Ubuntu:26.04:LTSlinux-gcp7.0.0-1016.18UBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-80933
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-hwe-7.07.0.0-42.42~24.04.1UBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-80933
Ubuntu:26.04:LTSlinux-ibm7.0.0-1017.17UBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-80933
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-80933
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1038.42UBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-80933
Ubuntu:26.04:LTSlinux-oem-7.07.0.0-1017.17UBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-80933
Ubuntu:26.04:LTSlinux-oracle7.0.0-1015.16UBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-80933
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-80933
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-80933
Ubuntu:26.04:LTSlinux-riscv7.0.0-42.42.1UBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-riscv-7.07.0.0-42.42.1~24.04.1UBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-80933
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-80933
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-80933

Affected products (as reported)

VendorProductVersions
Linux Linux 98686cd21624c75a043e96812beadddf4f6f48e5 – before b4bf67cc0871b13103c404b38e332b9d4403a0da98686cd21624c75a043e96812beadddf4f6f48e5 – before 127a291f4c8069a4e71906938402cacfe24ee8cd98686cd21624c75a043e96812beadddf4f6f48e5 – before 03b81f015dbb29807ce1ec6d45537d658abdac6998686cd21624c75a043e96812beadddf4f6f48e5 – before 7074ec3769820302f1ccf8794a40a6582153b82098686cd21624c75a043e96812beadddf4f6f48e5 – before 653c6e289b13cc6942f3e8f8e3c568e70fa42d1f
Linux Linux 6.2

References