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CVE-2026-98734VulnerabilityPublished Updated

Microsoft · Bluetooth: hci_core: Serialize SCO and ISO scheduling with teardown

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-98734· High

Not known to be exploited · fixed in f997e03e2ef58aa7114828c9d924e515a9a1db9c : patch Microsoft soon.

Data as of 7 Nov 2026, 12:33 UTC

Severity
High

Rated by Threat Radar · CVSS not yet scored by NVD

Patch
Available – fixed in f997e03e2ef58aa7114828c9d924e515a9a1db9c, ecdb1c66d8e14e63731c52d6fbcfa604064913c4, 101825c09ad6b7daa6cf4c9e6b1720b13de15596 +2

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 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 7 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ bf4c63252490ba78fb833cc7acf1a5b1900c970f, < f997e03e2ef58aa7114828c9d924e515a9a1db9c
Fixed in
  • f997e03e2ef58aa7114828c9d924e515a9a1db9c
LinuxLinuxAffected
  • ≥ bf4c63252490ba78fb833cc7acf1a5b1900c970f, < ecdb1c66d8e14e63731c52d6fbcfa604064913c4
Fixed in
  • ecdb1c66d8e14e63731c52d6fbcfa604064913c4
LinuxLinuxAffected
  • ≥ bf4c63252490ba78fb833cc7acf1a5b1900c970f, < 101825c09ad6b7daa6cf4c9e6b1720b13de15596
Fixed in
  • 101825c09ad6b7daa6cf4c9e6b1720b13de15596
LinuxLinuxAffected
  • ≥ bf4c63252490ba78fb833cc7acf1a5b1900c970f, < 1681f97afdf92e8557f2f3118ddc898471b5d299
Fixed in
  • 1681f97afdf92e8557f2f3118ddc898471b5d299
LinuxLinuxAffected
  • ≥ bf4c63252490ba78fb833cc7acf1a5b1900c970f, < 848a7a91c7f03675d3bd8db6f7721cbf9cb50e21
Fixed in
  • 848a7a91c7f03675d3bd8db6f7721cbf9cb50e21
LinuxLinuxAffected
  • =3.3
Fixed in–

Description

A vulnerability identified as CVE-2026-98734 affects Microsoft products related to Bluetooth, specifically in the hci_core component responsible for serializing SCO and ISO scheduling with teardown. No detailed technical or impact information is provided beyond the identification of the affected component and versions.

References

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