CVE-2025-30653

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

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.

Remediation

Solution:

  • 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.

Workaround:

  • There are no known workarounds for this issue.

Category

6.0
CVSS
Severity: Medium
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.02%
Vendor Advisory juniper.net
Affected: Juniper Networks Junos OS
Affected: Juniper Networks Junos OS Evolved
Published at:
Updated at:

References

Link Tags
https://supportportal.juniper.net/JSA96463 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2025-30653?
CVE-2025-30653 has been scored as a medium severity vulnerability.
How to fix CVE-2025-30653?
To fix CVE-2025-30653: 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.
Is CVE-2025-30653 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-30653 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-30653?
CVE-2025-30653 affects Juniper Networks Junos OS, Juniper Networks Junos OS Evolved.
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