CVE-2024-30407: Juniper Cloud Native Router

High severity, CVSS 8.1. EPSS: 0.7% chance of exploitation in the next 30 days.

The Use of a Hard-coded Cryptographic Key vulnerability in Juniper Networks Juniper Cloud Native Router (JCNR) and containerized routing Protocol Deamon (cRPD) products allows an attacker to perform Person-in-the-Middle (PitM) attacks which results in complete compromise of the container. Due to hardcoded SSH host keys being present on the container, a PitM attacker can intercept SSH traffic without being detected.  This issue affects Juniper Networks JCNR: * All versions before 23.4. This issue affects Juniper Networks cRPD: * All versions before 23.4R1.

Affected products

• Juniper Cloud Native Router: before 23.4 (fixed in 23.4)
• Juniper Crpd: before 23.4r1 (fixed in 23.4r1)
• Juniper Networks, Inc Crpd: before 23.4R1 (fixed in 23.4R1)
• Juniper Networks, Inc Juniper Cloud Native Router Jcnr: before 23.4 (fixed in 23.4)

Published 2024-04-12. Last modified 2026-06-17.