CVE-2026-98110: Linux kernel · Bluetooth: btintel: bound firmware ID by TLV length
Source GCVE Database
Not known to be exploited · CVSS 7.1 Medium · fixed in aef56a2bd5aa22808ce508605d7497d2b5e8eb5f : update Linux kernel when convenient.
Data as of 28 Oct 2026, 22:27 UTC
- Patch
- Available – fixed in aef56a2bd5aa22808ce508605d7497d2b5e8eb5f, ac8aa9e0ec93a12a60230066f199f49c3b9aac3d, a07b3024a927892dd46e7dfbed438e8834e24098 +1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HExploitation 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
Upgrade Linux kernel to aef56a2bd5aa22808ce508605d7497d2b5e8eb5f, ac8aa9e0ec93a12a60230066f199f49c3b9aac3d, a07b3024a927892dd46e7dfbed438e8834e24098 or 058f56de5f48ba4b3be01526006ac83ce9e79f39.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in– |
AI-suggested
The vulnerability has been resolved in the Linux kernel by bounding the firmware ID processing by the TLV length, preventing out-of-bounds reads. Monitor official Linux kernel advisories for the patch release and apply it promptly.
Description
CVE-2026-98110 is a high-severity vulnerability in the Linux kernel's Bluetooth subsystem (btintel). The flaw arises because the firmware ID is handled as a NUL-terminated string, but its actual boundary is defined only by the TLV length. If the firmware ID lacks a NUL terminator, the snprintf() function may read beyond the intended buffer, causing an out-of-bounds read.
References
- nvd.nist.gov/vuln/detail/CVE-2026-98110 (opens in a new tab)
- git.kernel.org/stable/c/058f56de5f48ba4b3be01526006ac83ce9e79f39 (opens in a new tab)
- git.kernel.org/stable/c/a07b3024a927892dd46e7dfbed438e8834e24098 (opens in a new tab)
- git.kernel.org/stable/c/ac8aa9e0ec93a12a60230066f199f49c3b9aac3d (opens in a new tab)
- git.kernel.org/stable/c/aef56a2bd5aa22808ce508605d7497d2b5e8eb5f (opens in a new tab)