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CVE-2026-99100VulnerabilityPublished

Microsoft · wifi: p54: validate firmware record lengths

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-99100· Medium

Not known to be exploited · fixed in f641066b0ddcd1b0cf007c0d04f9c966f6e888ae : update Microsoft when convenient.

Data as of 29 Oct 2026, 12:03 UTC

Severity
Medium

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 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in f641066b0ddcd1b0cf007c0d04f9c966f6e888ae, db7b86bd97b380ece8fa39cfdd7502a9fd35e56f, 8c4f962f368d5e17481f3c2c5a43028953e137a5 +2

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 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 29 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • <6.18.59
  • <7.2.13
Fixed in
  • f641066b0ddcd1b0cf007c0d04f9c966f6e888ae
  • db7b86bd97b380ece8fa39cfdd7502a9fd35e56f
  • 8c4f962f368d5e17481f3c2c5a43028953e137a5
  • 7.2.13
  • 6.18.59

Description

This vulnerability involves the p54 wireless driver firmware record length validation in Microsoft software version 3.0. The provided information is limited and does not describe the nature or impact of the vulnerability in detail.

References

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