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CVE-2026-98423VulnerabilityPublished Updated

Microsoft · wifi: mac80211_hwsim: don't hand frames to mac80211 while stopping

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-98423· Low

Not known to be exploited · fixed in d7fa45d8123a7f794b93fc22dbcf19f38dc4d8cb : update Microsoft when convenient.

Data as of 2 Nov 2026, 10:58 UTC

Severity
Low

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS
0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in d7fa45d8123a7f794b93fc22dbcf19f38dc4d8cb, c4e4fe330294e3936e0f4e15d6996468f8a45fb2, 87840d4a3a21b1c19b867a80e16ba69dff284de2 +3

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 14 Oct 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 2 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 7882513bacb176ab4aacceefdd035ca9479da4fb, < d7fa45d8123a7f794b93fc22dbcf19f38dc4d8cb
Fixed in
  • d7fa45d8123a7f794b93fc22dbcf19f38dc4d8cb
LinuxLinuxAffected
  • ≥ 7882513bacb176ab4aacceefdd035ca9479da4fb, < c4e4fe330294e3936e0f4e15d6996468f8a45fb2
Fixed in
  • c4e4fe330294e3936e0f4e15d6996468f8a45fb2
LinuxLinuxAffected
  • ≥ 7882513bacb176ab4aacceefdd035ca9479da4fb, < 87840d4a3a21b1c19b867a80e16ba69dff284de2
Fixed in
  • 87840d4a3a21b1c19b867a80e16ba69dff284de2
LinuxLinuxAffected
  • ≥ 7882513bacb176ab4aacceefdd035ca9479da4fb, < 5ce9b2bc9e73213e316a8c72400256a76bf41814
Fixed in
  • 5ce9b2bc9e73213e316a8c72400256a76bf41814
LinuxLinuxAffected
  • ≥ 7882513bacb176ab4aacceefdd035ca9479da4fb, < 5c79ef616aa16af582fb2cb93b0f750975a0004f
Fixed in
  • 5c79ef616aa16af582fb2cb93b0f750975a0004f
LinuxLinuxAffected
  • ≥ 7882513bacb176ab4aacceefdd035ca9479da4fb, < 2f59be7585dc81baa6f36b0035dd6848ea43d318
Fixed in
  • 2f59be7585dc81baa6f36b0035dd6848ea43d318

Description

This vulnerability involves the wifi mac80211_hwsim component where frames are improperly handed to mac80211 during the stopping process. The issue affects Microsoft products with versions 3.0 and 4.0. No CVSS score or detailed impact information is provided.

References

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