Microsoft · wifi: mac80211: validate deauth frame length before reason access
Affects MicrosoftSource GCVE Database
Not known to be exploited · fixed in a78689e2beed200d4590318612c74ae25c9408cf : update Microsoft when convenient.
Data as of 2 Nov 2026, 10:58 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
Thin evidence
One scorer or none- EPSS
- 0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in a78689e2beed200d4590318612c74ae25c9408cf, a6ed4c00ccdc15011a73daa2b38af9fc5a2c543e, 51092dc769f021e9634474e1bd5a561da477fbdb +4
Exploitation evidence
Disclosed: evidence found.
CVE published 23 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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Description
This vulnerability involves the validation of deauthentication frame length before accessing the reason field in the mac80211 component of WiFi software. It is identified in Microsoft products versions 3.0 and 4.0. No CVSS score or detailed impact information is provided.