{"id":"CVE-2025-59964","title":"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).\n\nWhen forwarding-op…","summary":"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).\n\nWhen forwarding-op…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-908"],"vendor":"juniper","product":"junos","affected":["junos = 24.4"],"published":"2025-10-09","updated":"2026-10-08","sourceUpdated":"2026-10-08T13:10:00.200","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-59964","references":[{"url":"https://supportportal.juniper.net/JSA103153","label":"sirt@juniper.net"},{"url":"https://www.juniper.net/documentation/us/en/software/junos/cli-reference/topics/ref/statement/sampling-edit-forwarding-options.html","label":"sirt@juniper.net"}],"tags":["nvd"],"epss":0.00355,"epssPercentile":0.27162,"ingestedAt":"2026-10-08T13:42:55.042Z","slug":"CVE-2025-59964","body":"## Overview\n\nA 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).\n\nWhen 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). \n\nContinued 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.\n\n\nThis issue affects Junos OS on SRX4700: \n\n\n\n  *  from 24.4 before 24.4R1-S3, 24.4R2\n\n\nThis issue affects IPv4 and IPv6.\n\n## Affected\n\n- `junos = 24.4`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}