wifi: mt76: mt7996: validate default EEPROM firmware size (CVE-2026-80933) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-80933

wifi: mt76: mt7996: validate default EEPROM firmware size

Answer in brief

CVE-2026-80933 records a Unknown severity vulnerability in wifi: mt76: mt7996: validate default EEPROM firmware size. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 11, 2026Updated Sep 11, 2026Source checked Sep 11, 2026First seen by HOL Sep 11, 2026Material review Sep 11, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=98686cd21624c75a043e96812beadddf4f6f48e5 <03b81f015dbb29807ce1ec6d45537d658abdac69 \|\| >=98686cd21624c75a043e96812beadddf4f6f48e5 <7074ec3769820302f1ccf8794a40a6582153b820 \|\| >=98686cd21624c75a043e96812beadddf4f6f48e5 <653c6e289b13cc6942f3e8f8e3c568e70fa42d1f	03b81f015dbb29807ce1ec6d45537d658abdac69, 7074ec3769820302f1ccf8794a40a6582153b820, 653c6e289b13cc6942f3e8f8e3c568e70fa42d1f
Linux/Linuxgeneric	6.2	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 03b81f015dbb29807ce1ec6d45537d658abdac69 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 11, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.