CVE-2025-1673: Zephyrproject Zephyr

High severity, CVSS 8.2. EPSS: 0.4% chance of exploitation in the next 30 days.

A malicious or malformed DNS packet without a payload can cause an out-of-bounds read, resulting in a crash (denial of service) or an incorrect computation.

Affected products

• Zephyrproject Zephyr: up to and including 4.0

Published 2025-02-25. Last modified 2026-06-17.