VulnerabilityPublished 18 Oct 2026

CVE-2026-98601: Linux kernel · Bluetooth: btintel_pcie: validate device-supplied DMA indices

Source GCVE Database

Authoritative record:CVE-2026-98601· High

Not known to be exploited · fixed in f42cd95e679d5b78611cd2208cd1c41ad0045ffa : patch Linux kernel soon.

Data as of 26 Oct 2026, 13:47 UTC

Severity

High

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in f42cd95e679d5b78611cd2208cd1c41ad0045ffa, b29b70bfa12133423924fcd0327c19a802f7e368, 37a11129345337efd6eef8e62b03b6348cd0dd8b +1

Exploitation evidence

Disclosed: evidence found.
CVE published 18 Oct 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.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-f3q9-4q8h-j7xp

What to do

Upgrade Linux kernel to f42cd95e679d5b78611cd2208cd1c41ad0045ffa, b29b70bfa12133423924fcd0327c19a802f7e368, 37a11129345337efd6eef8e62b03b6348cd0dd8b or 8ec5838a35b03ac0cf3602452a369898051ffaf9.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ c2b636b3f788d10486a6691ad6dd3ec4c93bd78e, < f42cd95e679d5b78611cd2208cd1c41ad0045ffa	Fixed in f42cd95e679d5b78611cd2208cd1c41ad0045ffa
LinuxLinux	Affected ≥ c2b636b3f788d10486a6691ad6dd3ec4c93bd78e, < b29b70bfa12133423924fcd0327c19a802f7e368	Fixed in b29b70bfa12133423924fcd0327c19a802f7e368
LinuxLinux	Affected ≥ c2b636b3f788d10486a6691ad6dd3ec4c93bd78e, < 37a11129345337efd6eef8e62b03b6348cd0dd8b	Fixed in 37a11129345337efd6eef8e62b03b6348cd0dd8b
LinuxLinux	Affected ≥ c2b636b3f788d10486a6691ad6dd3ec4c93bd78e, < 8ec5838a35b03ac0cf3602452a369898051ffaf9	Fixed in 8ec5838a35b03ac0cf3602452a369898051ffaf9
LinuxLinux	Affected =6.10	Fixed in–

AI-suggested

The vulnerability has been resolved by adding proper bounds validation checks in the affected driver code. Since a patch or official fix is indicated by the description stating the vulnerability has been resolved, users should update their Linux kernel to a version that includes this fix. No additional mitigation steps are specified.

Description

A vulnerability in the Linux kernel Bluetooth driver (btintel_pcie) was resolved that involved improper validation of device-supplied DMA indices. The driver used a 16-bit device-controlled value as an array index without bounds checking, allowing out-of-bounds memory access. Additionally, a loop could become infinite due to unvalidated indices. The issue was fixed by adding bounds checks and logging invalid values.

References

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