CVE-2025-30653 Junos OS and Junos OS Evolved: LSP flap in a specific MPLS scenario leads to rpd crash

Medium 6.0 Published 9 Apr 2025 Updated 9 Apr 2025

An unauthenticated adjacent attacker can cause a denial of service by triggering an rpd crash via MPLS LSP flapping in specific configurations.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-30653?

CVE-2025-30653 is a medium-severity vulnerability in Juniper Junos, published on 9 Apr 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An Expired Pointer Dereference vulnerability in Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause Denial of Service (DoS).On all Junos OS and Junos OS Evolved platforms, when an MPLS Label-Switched Path (LSP) is configured with node-link-protection and transport-class, and an LSP flaps, rpd crashes and restarts. Continuous flapping of LSP can cause a sustained Denial of Service (DoS) condition.

This issue affects:

Junos OS:

* All versions before 22.2R3-S4,

* 22.4 versions before 22.4R3-S2,

* 23.2 versions before 23.2R2,

* 23.4 versions before 23.4R2.

Junos OS Evolved:

* All versions before 22.2R3-S4-EVO,

* 22.4-EVO versions before 22.4R3-S2-EVO,

* 23.2-EVO versions before 23.2R2-EVO,

* 23.4-EVO versions before 23.4R2-EVO.

Weakness: CWE-825

Which versions are affected by CVE-2025-30653?

It affects 2 products.

Products include Juniper Junos, Juniper Junos Os Evolved.

How do I fix CVE-2025-30653?

No fix has been published for CVE-2025-30653 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-30653 being exploited?

There is no known exploitation of CVE-2025-30653 in the wild and no public exploit code.

All Juniper Junos vulnerabilities

Sources

Also known as GHSA-64rh-h733-hq6g.