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P4Verified

CVE-2026-5066: zephyr through 4.3.0 (inclusive); +1 more affected products

CVE-2026-5066. CVSS 3.1 base score 8.8 (HIGH, NVD). EPSS 0.00467 (percentile 0.38869), scored 14-Oct-2026.

Affected technology

zephyr · through 4.3.0 (inclusive)
zephyrproject

Zephyr · * to before 3.7.2, 4.0.0 to before 4.2.2, 4.3.0 to before 4.3.1
zephyrproject-rtos

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required

Attack conditions (NVD, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

The source reports that an attacker could run attacker-chosen code and disrupt service under the conditions described by the source. Vendor/CNA’s CVSS 3.1 assessment (base score 6.3/10) rates confidentiality, integrity and availability impact as low. NVD’s CVSS 3.1 assessment (base score 8.8/10) rates confidentiality, integrity and availability impact as high.

Published

CWE
CWE-787
CCR priority
35.3 /100 (P4)
CVSS 3.1
8.8 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · NVD
EPSS
0.00467 · percentile 0.38869 · 2026-10-14
KEV
no

Provenance

Stable permalink: https://cybercodered.org/item/cve-cve-2026-5066.html