CVE-2025-30653: Junos OS and Junos OS Evolved: LSP flap in a specific MPLS scenario leads to rpd crash
First published: Wed Apr 09 2025(Updated: )
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.
Credit: sirt@juniper.net
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Juniper JUNOS | <22.2R3-S4<22.4R3-S2<23.2R2<23.4R2 | |
| Juniper Networks Junos OS | <22.2R3-S4-EVO<22.4R3-S2-EVO<23.2R2-EVO<23.4R2-EVO |
Remedy
The following software releases have been updated to resolve this specific issue: Junos OS: 22.2R3-S4, 22.4R3-S2, 23.2R2, 23.4R2, 24.2R1, and all subsequent releases. Junos OS Evolved: 22.2R3-S4-EVO, 22.4R3-S2-EVO, 23.2R2-EVO, 23.4R2-EVO, 24.2R1-EVO, and all subsequent releases.
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-30653?
CVE-2025-30653 has a severity rating that indicates a Denial of Service (DoS) vulnerability affecting Juniper Networks' products.
How do I fix CVE-2025-30653?
To remediate CVE-2025-30653, upgrade to the latest patched version of Junos OS or Junos OS Evolved as recommended by Juniper Networks.
What is the impact of CVE-2025-30653?
CVE-2025-30653 allows an unauthenticated adjacent attacker to exploit the vulnerability, leading to a potential Denial of Service.
Which products are affected by CVE-2025-30653?
CVE-2025-30653 affects multiple versions of Juniper Networks Junos OS and Junos OS Evolved, specifically versions up to 22.2R3-S4 and others.
Is CVE-2025-30653 exploitable remotely?
CVE-2025-30653 is not remotely exploitable but can be triggered by an adjacent attacker within the same network.
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