P4Verified

CVE-2026-19740: zephyr 3.4.0 to before 4.5.0

CVE-2026-19740. CVSS 3.1 base score 6.5 (MEDIUM, Vendor/CNA).

Affected technology

zephyr · 3.4.0 to before 4.5.0
zephyrproject

Component: Not specified by the source
Function: llcp_lp_pu_rx, llcp_rp_pu_rx
File: subsys/bluetooth/controller/ll_sw/ull_llcp_phy.c

Attack conditions (Vendor/CNA, CVSS 3.1): Adjacent network · No privileges required · No user interaction required

What an attacker can do

Vendor/CNA’s CVSS 3.1 assessment (base score 6.5/10) rates confidentiality and integrity impact as none; availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 11-Oct-2026 23:39 UTC

CWE: CWE-401, CWE-459, CWE-617, CWE-772
CCR priority: 26.0 /100 (P4)
CVSS 3.1: 6.5 /10 · CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · Vendor/CNA
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-11 23:39:08.456424+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-19740.html