CVE-2026-98111: Linux kernel · Bluetooth: btintel: validate version TLV value lengths
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 12:55 UTC
Rated by Threat Radar · 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.
Exploitation evidence
Disclosed: evidence found.
CVE published 25 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix has been implemented to validate TLV value lengths properly and reject incomplete or malformed responses. Users should apply the official patches or updates provided for the affected Linux kernel versions to remediate this vulnerability.
Description
A vulnerability in the Linux kernel's Bluetooth component (btintel) was resolved that involved improper validation of version TLV value lengths. The function btintel_parse_version_tlv() did not ensure that the value length was sufficient for the specific TLV type, which could lead to out-of-bounds reads. This issue was addressed by rejecting values shorter than the minimum required length and responses missing the Command Complete Status field.
References
- ubuntu.com/security/CVE-2026-98111 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-98111 (opens in a new tab)
- git.kernel.org/stable/c/76948d207d0978a613ce06a05cba07284a5578a7 (opens in a new tab)
- git.kernel.org/stable/c/a086c0892969bf8a0151b0f12bd14a68827c88b2 (opens in a new tab)
- git.kernel.org/stable/c/83499ac3ca62e43ed40f7574b13ed398a6891511 (opens in a new tab)
- git.kernel.org/stable/c/5ec43df2830b73e004147303bf7914ca884d6770 (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-98111 (opens in a new tab)
- git.kernel.org/stable/c/e9cf7f175c00d36b060828f4eac8d2e246ee079b (opens in a new tab)