CVE-2025-30659: Junos OS: SRX Series: A device configured for vector routing crashes when receiving malformed traffic
Description
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.
Classification
CVE ID: CVE-2025-30659
CVSS Base Severity: HIGH
CVSS Base Score: 7.5
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
Vendor: Juniper Networks
Product: Junos OS
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.05% (probability of being exploited)
EPSS Percentile: 16.39% (scored less or equal to compared to others)
EPSS Date: 2025-04-20 (when was this score calculated)
Stakeholder-Specific Vulnerability Categorization (SSVC)
SSVC Exploitation: none
SSVC Technical Impact: partial
SSVC Automatable: true
References
https://nvd.nist.gov/vuln/detail/CVE-2025-30659https://supportportal.juniper.net/JSA96470