P4Verified

CVE-2026-19938: zephyr 2.3.0 to before 4.5.0

CVE-2026-19938. CVSS 3.1 base score 5.9 (MEDIUM, Vendor/CNA).

Affected technology

zephyr · 2.3.0 to before 4.5.0
zephyrproject

Component: Not specified by the source
Function: bt_att_send, chan_send, process_queue
File: subsys/bluetooth/host/att.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 5.9/10) rates confidentiality impact as none; integrity impact as low; availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 13-Oct-2026 01:49 UTC

CWE: CWE-416
CCR priority: 23.6 /100 (P4)
CVSS 3.1: 5.9 /10 · CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H · Vendor/CNA
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-13 01:49:08.152775+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-19938.html