CVE-2025-30659

09.04.2025, 20:15

An Improper Handling of Length Parameter Inconsistency vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).

When a device configured for Secure Vector Routing (SVR) receives a specifically malformed packet the PFE will crash and restart.
This issue affects Junos OS on SRX Series:



  *  All 21.4 versions,
  *  22.2 versions before 22.2R3-S6,
  *  22.4 versions before 22.4R3-S6,
  *  23.2 versions before 23.2R2-S3,
  *  23.4 versions before 23.4R2-S4,
  *  24.2 versions before 24.2R2.




This issue does not affect versions before 21.4.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	7.5 HIGH	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
juniper	CNA	7.5 HIGH	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA-ADP	ADP	---				---

Awaiting analysis

This vulnerability is currently awaiting analysis.

Base Score

CVSS 3.x

EPSS Score

Percentile: 17%

Common Weakness Enumeration

CWE-130 - Improper Handling of Length Parameter Inconsistency
The software parses a formatted message or structure, but it does not handle or incorrectly handles a length field that is inconsistent with the actual length of the associated data.

References

https://supportportal.juniper.net/JSA96470