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CVE-2026-90374VulnerabilityPublished Updated

Microsoft · wifi: mt76: mt7996: validate RX band_idx before dereferencing phys[]

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-90374· Medium

Not known to be exploited · fixed in b1c5cf8903bec5476a2233b4e45287b9a2213e02 : update Microsoft when convenient.

Data as of 7 Nov 2026, 12:48 UTC

Severity
Medium

Rated by Threat Radar · CVSS not yet scored by NVD

Patch
Available – fixed in b1c5cf8903bec5476a2233b4e45287b9a2213e02, 2243778a5fae8329ab5f18e7adcd7e03b911a1b7, 535091c587268cc783608642838a655d828eefdd +2

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 17 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 7 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 98686cd21624c75a043e96812beadddf4f6f48e5, < b1c5cf8903bec5476a2233b4e45287b9a2213e02
Fixed in
  • b1c5cf8903bec5476a2233b4e45287b9a2213e02
LinuxLinuxAffected
  • ≥ 98686cd21624c75a043e96812beadddf4f6f48e5, < 2243778a5fae8329ab5f18e7adcd7e03b911a1b7
Fixed in
  • 2243778a5fae8329ab5f18e7adcd7e03b911a1b7
LinuxLinuxAffected
  • ≥ 98686cd21624c75a043e96812beadddf4f6f48e5, < 535091c587268cc783608642838a655d828eefdd
Fixed in
  • 535091c587268cc783608642838a655d828eefdd
LinuxLinuxAffected
  • ≥ 98686cd21624c75a043e96812beadddf4f6f48e5, < 493a029c205a994644327d554f0cfeb9651aba7c
Fixed in
  • 493a029c205a994644327d554f0cfeb9651aba7c
LinuxLinuxAffected
  • ≥ 98686cd21624c75a043e96812beadddf4f6f48e5, < 0f53ece876e1f3bbb3e18f48afc4af1ee967b16c
Fixed in
  • 0f53ece876e1f3bbb3e18f48afc4af1ee967b16c
LinuxLinuxAffected
  • =6.2
Fixed in–

Description

This vulnerability involves the mt76 wireless driver component, specifically the mt7996 chipset, where the RX band index is not properly validated before dereferencing the phys[] array. This could potentially lead to out-of-bounds memory access or other unintended behavior. The affected software versions are exactly 3.0 and 4.0. No CVSS score or detailed impact information is provided, and there are no known exploits in the wild at this time.

References

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