What is CVE-2025-30659?

CVE-2025-30659 is a high-severity vulnerability in Juniper Junos, classified under Improper Handling of Length Parameter Inconsistency. CVSS score: 7.5/10. Published 2025-04-09.

How severe is CVE-2025-30659?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Juniper Junos

CVE-2025-30659

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). Wh…

EPSS: 0.003 (25.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Juniper Junos — versions 21.4, 22.2, 22.4
Juniper Srx1500
Juniper Srx1600
Juniper Srx2300
Juniper Srx300
Juniper Srx320
Juniper Srx340
Juniper Srx345
Juniper Srx380
Juniper Srx4100

Weakness classification (CWE)

CWE-130 — Improper Handling of Length Parameter Inconsistency

References

sirt@juniper.net (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2025-30659?: CVE-2025-30659 is a high-severity vulnerability in Juniper Junos, classified under Improper Handling of Length Parameter Inconsistency. CVSS score: 7.5/10. Published 2025-04-09.
How severe is CVE-2025-30659?: High severity. CVSS v3 base score is 7.5 out of 10.