CVE-2025-30653

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

State: Published
Severity: 6.0 Medium
Published: Apr 9, 2025
Updated: Apr 9, 2025
Reserved: Mar 24, 2025

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.

Scores

CVSS	Score	Vector	Source
4.0	6.0 Medium	CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L	juniper
3.1	6.5 Medium	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	juniper

Weaknesses

CWE-825 Expired Pointer Dereference

Affected Products

Product	Versions
Junos OSJuniper Networks	before 22.2R3-S4Affected 22.4 to before 22.4R3-S2Affected 23.2 to before 23.2R2Affected 23.4 to before 23.4R2Affected
Junos OS EvolvedJuniper Networks	before 22.2R3-S4-EVOAffected 22.4-EVO to before 22.4R3-S2-EVOAffected 23.2-EVO to before 23.2R2-EVOAffected 23.4-EVO to before 23.4R2-EVOAffected

References

https://supportportal.juniper.net/JSA96463vendor-advisory

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