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CVE-2026-98407VulnerabilityPublished Updated

Microsoft · wifi: rsi: fix heap OOB write on key removal

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-98407· High

Not known to be exploited · fixed in f4f2852b664c3ff1436785cd11258a0ce25b74b3 : patch Microsoft soon.

Data as of 2 Nov 2026, 10:58 UTC

Severity
High

Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD

EPSS
0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in f4f2852b664c3ff1436785cd11258a0ce25b74b3, e6c5ed7a98d7bc8b0f7918246f1c90ddb3f79dfa, c67fb3b875a83f9ba92afea4036c7b541f77512a +5

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
  • ≥ dad0d04fa7ba41ce603a01e8e64967650303e9a2, < f4f2852b664c3ff1436785cd11258a0ce25b74b3
Fixed in
  • f4f2852b664c3ff1436785cd11258a0ce25b74b3
LinuxLinuxAffected
  • ≥ dad0d04fa7ba41ce603a01e8e64967650303e9a2, < e6c5ed7a98d7bc8b0f7918246f1c90ddb3f79dfa
Fixed in
  • e6c5ed7a98d7bc8b0f7918246f1c90ddb3f79dfa
LinuxLinuxAffected
  • ≥ dad0d04fa7ba41ce603a01e8e64967650303e9a2, < c67fb3b875a83f9ba92afea4036c7b541f77512a
Fixed in
  • c67fb3b875a83f9ba92afea4036c7b541f77512a
LinuxLinuxAffected
  • ≥ dad0d04fa7ba41ce603a01e8e64967650303e9a2, < b79e2f6585c014c42384f4caa7a37b3e5d26179c
Fixed in
  • b79e2f6585c014c42384f4caa7a37b3e5d26179c
LinuxLinuxAffected
  • ≥ dad0d04fa7ba41ce603a01e8e64967650303e9a2, < ac599cf8edf8aa2dae546f04d3f1849e32c2e738
Fixed in
  • ac599cf8edf8aa2dae546f04d3f1849e32c2e738
LinuxLinuxAffected
  • ≥ dad0d04fa7ba41ce603a01e8e64967650303e9a2, < 62d40db89180cfab7a917395f9ffc1dac62b0019
Fixed in
  • 62d40db89180cfab7a917395f9ffc1dac62b0019

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

A heap out-of-bounds (OOB) write vulnerability exists in the WiFi RSI component related to key removal in Microsoft software versions 3.0 and 4.0. This flaw could potentially lead to memory corruption.

References

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