CVE-2026-1678: zephyr through 4.3.0 (inclusive); +1 more affected products

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) · No privileges required · No user interaction required

Attack conditions (NVD, 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 9.4/10) rates confidentiality impact as low; integrity and availability impact as high. NVD’s CVSS 3.1 assessment (base score 9.8/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.