CVE-2025-59964
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-09

Last updated on: 2025-10-14

Assigner: Juniper Networks, Inc.

Description
A Use of Uninitialized Resource vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on SRX4700 devices allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). When forwarding-options sampling is enabled, receipt of any traffic destined to the Routing Engine (RE) by the PFE line card leads to an FPC crash and restart, resulting in a Denial of Service (DoS). Continued receipt and processing of any traffic leading to the RE by the PFE line card will create a sustained Denial of Service (DoS) condition to the PFE line card. This issue affects Junos OS on SRX4700:  * from 24.4 before 24.4R1-S3, 24.4R2 This issue affects IPv4 and IPv6.
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Meta Information
Published
2025-10-09
Last Modified
2025-10-14
Generated
2026-06-16
AI Q&A
2025-10-09
EPSS Evaluated
2026-06-14
NVD
CVE-2025-59964
EUVD
EUVD-2025-33397
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
juniper junos 24.4r2
juniper junos 24.4
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-908 The product uses or accesses a resource that has not been initialized.
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Executive Summary

This vulnerability is a Use of Uninitialized Resource issue in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on SRX4700 devices. When forwarding-options sampling is enabled, if the PFE line card receives any traffic destined to the Routing Engine (RE), it causes the FPC (Flexible PIC Concentrator) to crash and restart. This leads to a Denial of Service (DoS) condition. Continued receipt of such traffic results in a sustained DoS on the PFE line card.

Impact Analysis

An unauthenticated, network-based attacker can exploit this vulnerability to cause the PFE line card on affected Junos OS SRX4700 devices to crash and restart repeatedly. This results in a Denial of Service (DoS), potentially disrupting network traffic and services relying on the device.

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