CVE Catalog

CVE-2025-59964

HighCVSS 7.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.36%

27th percentile - higher than 27% of all known CVEs

Summary

A vulnerability in Junos OS on SRX4700 devices involves use of an uninitialized resource in the PFE, allowing an unauthenticated network-based attacker to cause an FPC crash and restart, leading to DoS. The issue occurs when forwarding-options sampling is enabled and traffic destined to the RE is processed by the PFE line card.

Risk Assessment

An attacker can cause service disruption by repeatedly triggering PFE crashes, leading to device unavailability.

Recommendation

Apply the appropriate Junos OS updates for SRX4700 as recommended by the vendor to fix the vulnerability. Restrict device access and monitor network traffic.

Other vulnerabilities in Junos OS

See all
Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS