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CVE-2026-63944: Linux 6.4
CVE-2026-63944. CVSS 3.1 base score 8.8 (HIGH, Source advisory). EPSS 0.00333 (percentile 0.24884), scored 15-Oct-2026.
Affected technology
Linux · c09b80be6ffc338634b2f5f8cfa12b6843410834 to before a55618c0f4cead9e59c63f5ee030d393fd70d861, c09b80be6ffc338634b2f5f8cfa12b6843410834 to before a921957d39290143629eb38c4f74b9bef8035d0a, c09b80be6ffc338634b2f5f8cfa12b6843410834 to before d9019210c8c30d40eb20094274cc647e352f48f7, c09b80be6ffc338634b2f5f8cfa12b6843410834 to before 380e67b1794a9a281a0cb592b4e62077fbd0c8ca, c09b80be6ffc338634b2f5f8cfa12b6843410834 to before bfea6091e0fffb270c20e74384b660910277eb6c
Linux
Linux · 6.4
Linux
Component: Not specified by the source
File: net/bluetooth/hci_sync.c
Attack conditions (Source advisory, CVSS 3.1): Adjacent network · No privileges required · No user interaction required
What an attacker can do
Source advisory’s CVSS 3.1 assessment (base score 8.8/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.
- CCR priority
- 35.3 /100 (P4)
- CVSS 3.1
- 8.8 /10 · CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · Source advisory
- EPSS
- 0.00333 · percentile 0.24884 · 2026-10-15
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-16 16:55:38.548135+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-63944.html