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VulnerabilityPublished

CVE-2026-98459: Linux kernel · Bluetooth: ISO: balance the parent hold in hci_bind_bis()

Affects Linux kernelSource CVE Database V5

0

Not known to be exploited · fixed in ff28e6c67143c76ef50c3eac01f2fad411705f71 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 13:47 UTC

Severity
Medium

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

EPSS
0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in ff28e6c67143c76ef50c3eac01f2fad411705f71, bbcd723ee7a84bc868142fd57717af88e54e555a, 6.6.158 +3

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • >=6.6.67 <6.6.158
Fixed in
  • ff28e6c67143c76ef50c3eac01f2fad411705f71
  • bbcd723ee7a84bc868142fd57717af88e54e555a
  • 6.6.158
  • 4e49206d9574a4c109480198e73aea34ad0ed7f6
  • 4c94557dd02569efa6c1072a0439addaef9a5224
  • 03a91cdf6862fb351a74f035ad21e70112438552
LinuxLinuxAffected
  • =6.8
Fixed in–

AI-suggested

A fix is available in Linux kernel version 6.6.158 and later. Users should upgrade to version 6.6.158 or apply the corresponding patches to resolve the issue.

Description

A use-after-release issue in the Linux kernel's Bluetooth ISO subsystem was fixed by properly balancing reference holds on parent connections in the hci_bind_bis() function. The flaw could cause a parent connection to be disconnected while still in use by a socket.

References

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