VulnerabilityPublished 18 Oct 2026

CVE-2026-98730: Linux kernel · Bluetooth: btintel_pcie: reject oversized TX packets in send_frame()

Source GCVE Database

Authoritative record:CVE-2026-98730· High

Not known to be exploited · fixed in f771f96557a4d953a7e4d045870547271e36e819 : 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: 0.1% 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 f771f96557a4d953a7e4d045870547271e36e819, 9806a748f9ab223b733624367b6ddda77fb9450e, 84df222de86eabed543361025ed54ce838c0b573 +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-3249-w698-6rq3

What to do

Upgrade Linux kernel to f771f96557a4d953a7e4d045870547271e36e819, 9806a748f9ab223b733624367b6ddda77fb9450e, 84df222de86eabed543361025ed54ce838c0b573 or 3d6ba6be9bef13edcd4ad74f7cfdd0c34db4d2bc.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 6e65a09f927566f257322358d429b267548473eb, < f771f96557a4d953a7e4d045870547271e36e819	Fixed in f771f96557a4d953a7e4d045870547271e36e819
LinuxLinux	Affected ≥ 6e65a09f927566f257322358d429b267548473eb, < 9806a748f9ab223b733624367b6ddda77fb9450e	Fixed in 9806a748f9ab223b733624367b6ddda77fb9450e
LinuxLinux	Affected ≥ 6e65a09f927566f257322358d429b267548473eb, < 84df222de86eabed543361025ed54ce838c0b573	Fixed in 84df222de86eabed543361025ed54ce838c0b573
LinuxLinux	Affected ≥ 6e65a09f927566f257322358d429b267548473eb, < 3d6ba6be9bef13edcd4ad74f7cfdd0c34db4d2bc	Fixed in 3d6ba6be9bef13edcd4ad74f7cfdd0c34db4d2bc
LinuxLinux	Affected =6.10	Fixed in–

AI-suggested

A fix has been implemented in the Linux kernel to reject oversized packets in the btintel_pcie send_frame() function, preventing buffer overflow. Users should update to the patched kernel version containing this fix. No additional mitigations are specified.

Description

A vulnerability in the Linux kernel's Bluetooth component (btintel_pcie) was resolved by rejecting oversized transmit packets in the send_frame() function. The flaw allowed a user-space process with HCI_CHANNEL_USER access to inject packets larger than the fixed DMA buffer size, potentially causing a buffer overflow. The fix involves rejecting packets exceeding the buffer size minus the PCIe header length.

References

Community reviews

Loading reviews…