CVE-2026-76787: zephyr 2.4.0 to before 4.5.0

CVE-2026-76787. CVSS 3.1 base score 5.9 (MEDIUM, Vendor/CNA).

Affected technology

zephyr · 2.4.0 to before 4.5.0
zephyrproject

Component: Not specified by the source
Function: z_impl_updatehub_probe
File: subsys/mgmt/updatehub/updatehub.c

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · 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 and integrity impact as none; availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 20-Oct-2026 01:47 UTC

CWE: CWE-476
CCR priority: 23.6 /100 (P4)
CVSS 3.1: 5.9 /10 · CVSS:3.1/AV:N/AC:H/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 2026-10-20 01:44:01.123206+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-76787.html