{"id":"CVE-2025-59962","aliases":["EUVD-2025-33398","GHSA-qpxp-m556-4mcr"],"status":"published","title":"Junos OS and Junos OS Evolved: With BGP sharding enabled, change in indirect next-hop can cause RPD crash","description":"An Access of Uninitialized Pointer vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved with BGP sharding configured allows an attacker triggering indirect next-hop updates, along with timing outside the attacker's control, to cause rpd to crash and restart, leading to a Denial of Service (DoS).\n\nWith BGP sharding enabled, triggering route resolution of an indirect next-hop (e.g., an IGP route change over which a BGP route gets resolved), may cause rpd to crash and restart. An attacker causing continuous IGP route churn, resulting in repeated route re-resolution, will increase the likelihood of triggering this issue, leading to a potentially extended DoS condition.\n\nThis issue affects:\n\nJunos OS:\n\n\n\n  *  all versions before 21.4R3-S6, \n  *  from 22.1 before 22.1R3-S6, \n  *  from 22.2 before 22.2R3-S3, \n  *  from 22.3 before 22.3R3-S3, \n  *  from 22.4 before 22.4R3, \n  *  from 23.2 before 23.2R2; \n\n\n\n\nJunos OS Evolved: \n\n\n\n  *  all versions before 22.3R3-S3-EVO, \n  *  from 22.4 before 22.4R3-EVO, \n  *  from 23.2 before 23.2R2-EVO.\n\n\n\n\nVersions before Junos OS 21.3R1 and Junos OS Evolved 21.3R1-EVO are unaffected by this issue.","severity":{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/V:C/RE:M","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00177,"percentile":0.07268,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-824"],"published":"2025-10-09T15:45:19Z","modified":"2026-10-18T21:10:00Z","products":[{"vendor":"juniper","product":"junos"},{"vendor":"juniper","product":"junos_os_evolved"},{"vendor":"juniper networks","product":"junos os"},{"vendor":"juniper networks","product":"junos os evolved"}],"references":[{"url":"https://supportportal.juniper.net/JSA103151","tags":["vendor-advisory","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-59962"},{"url":"https://github.com/advisories/GHSA-qpxp-m556-4mcr"}],"sources":{"cve":[{"id":"CVE-2025-59962","title":"Junos OS and Junos OS Evolved: With BGP sharding enabled, change in indirect next-hop can cause RPD crash","description":"An Access of Uninitialized Pointer vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved with BGP sharding configured allows an attacker triggering indirect next-hop updates, along with timing outside the attacker's control, to cause rpd to crash and restart, leading to a Denial of Service (DoS).\n\nWith BGP sharding enabled, triggering route resolution of an indirect next-hop (e.g., an IGP route change over which a BGP route gets resolved), may cause rpd to crash and restart. An attacker causing continuous IGP route churn, resulting in repeated route re-resolution, will increase the likelihood of triggering this issue, leading to a potentially extended DoS condition.\n\nThis issue affects:\n\nJunos OS:\n\n\n\n  *  all versions before 21.4R3-S6, \n  *  from 22.1 before 22.1R3-S6, \n  *  from 22.2 before 22.2R3-S3, \n  *  from 22.3 before 22.3R3-S3, \n  *  from 22.4 before 22.4R3, \n  *  from 23.2 before 23.2R2; \n\n\n\n\nJunos OS Evolved: \n\n\n\n  *  all versions before 22.3R3-S3-EVO, \n  *  from 22.4 before 22.4R3-EVO, \n  *  from 23.2 before 23.2R2-EVO.\n\n\n\n\nVersions before Junos OS 21.3R1 and Junos OS Evolved 21.3R1-EVO are unaffected by this issue.","status":"published","published":"2025-10-09T15:45:19.343Z","modified":"2025-10-09T19:05:04.87Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/V:C/RE:M","level":"medium","assessor":"cna"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-824"],"updated_at":"2026-11-02T14:32:47.812946Z"}],"euvd":[{"id":"EUVD-2025-33398","description":"An Access of Uninitialized Pointer vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved with BGP sharding configured allows an attacker triggering indirect next-hop updates, along with timing outside the attacker's control, to cause rpd to crash and restart, leading to a Denial of Service (DoS).\n\nWith BGP sharding enabled, triggering route resolution of an indirect next-hop (e.g., an IGP route change over which a BGP route gets resolved), may cause rpd to crash and restart. An attacker causing continuous IGP route churn, resulting in repeated route re-resolution, will increase the likelihood of triggering this issue, leading to a potentially extended DoS condition.\n\nThis issue affects:\n\nJunos OS:\n\n\n\n  *  all versions before 21.4R3-S6, \n  *  from 22.1 before 22.1R3-S6, \n  *  from 22.2 before 22.2R3-S3, \n  *  from 22.3 before 22.3R3-S3, \n  *  from 22.4 before 22.4R3, \n  *  from 23.2 before 23.2R2; \n\n\n\n\nJunos OS Evolved: \n\n\n\n  *  all versions before 22.3R3-S3-EVO, \n  *  from 22.4 before 22.4R3-EVO, \n  *  from 23.2 before 23.2R2-EVO.\n\n\n\n\nVersions before Junos OS 21.3R1 and Junos OS Evolved 21.3R1-EVO are unaffected by this issue.","status":"published","published":"2025-10-09T15:45:19Z","modified":"2025-10-09T19:05:04Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/V:C/RE:M","level":"medium"}],"updated_at":"2026-11-02T20:31:34.46826Z"}],"ghsa":[{"id":"GHSA-qpxp-m556-4mcr","title":"An Access of Uninitialized Pointer vulnerability in the routing protocol daemon (rpd) of Juniper...","description":"An Access of Uninitialized Pointer vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved with BGP sharding configured allows an attacker triggering indirect next-hop updates, along with timing outside the attacker's control, to cause rpd to crash and restart, leading to a Denial of Service (DoS).\n\nWith BGP sharding enabled, triggering route resolution of an indirect next-hop (e.g., an IGP route change over which a BGP route gets resolved), may cause rpd to crash and restart. An attacker causing continuous IGP route churn, resulting in repeated route re-resolution, will increase the likelihood of triggering this issue, leading to a potentially extended DoS condition.\n\nThis issue affects:\n\nJunos OS:\n\n\n\n  *  all versions before 21.4R3-S6, \n  *  from 22.1 before 22.1R3-S6, \n  *  from 22.2 before 22.2R3-S3, \n  *  from 22.3 before 22.3R3-S3, \n  *  from 22.4 before 22.4R3, \n  *  from 23.2 before 23.2R2; \n\n\n\n\nJunos OS Evolved: \n\n\n\n  *  all versions before 22.3R3-S3-EVO, \n  *  from 22.4 before 22.4R3-EVO, \n  *  from 23.2 before 23.2R2-EVO.\n\n\n\n\nVersions before Junos OS 21.3R1 and Junos OS Evolved 21.3R1-EVO are unaffected by this issue.","status":"published","published":"2025-10-09T18:30:36Z","modified":"2025-10-09T18:30:43Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:C/RE:M/U:X","level":"medium"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-824"],"updated_at":"2026-11-02T15:03:54.922073Z"}],"nvd":[{"id":"CVE-2025-59962","description":"An Access of Uninitialized Pointer vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved with BGP sharding configured allows an attacker triggering indirect next-hop updates, along with timing outside the attacker's control, to cause rpd to crash and restart, leading to a Denial of Service (DoS).\n\nWith BGP sharding enabled, triggering route resolution of an indirect next-hop (e.g., an IGP route change over which a BGP route gets resolved), may cause rpd to crash and restart. An attacker causing continuous IGP route churn, resulting in repeated route re-resolution, will increase the likelihood of triggering this issue, leading to a potentially extended DoS condition.\n\nThis issue affects:\n\nJunos OS:\n\n\n\n  *  all versions before 21.4R3-S6, \n  *  from 22.1 before 22.1R3-S6, \n  *  from 22.2 before 22.2R3-S3, \n  *  from 22.3 before 22.3R3-S3, \n  *  from 22.4 before 22.4R3, \n  *  from 23.2 before 23.2R2; \n\n\n\n\nJunos OS Evolved: \n\n\n\n  *  all versions before 22.3R3-S3-EVO, \n  *  from 22.4 before 22.4R3-EVO, \n  *  from 23.2 before 23.2R2-EVO.\n\n\n\n\nVersions before Junos OS 21.3R1 and Junos OS Evolved 21.3R1-EVO are unaffected by this issue.","status":"published","published":"2025-10-09T16:15:46.247Z","modified":"2026-10-18T21:10:00.12Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:C/RE:M/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-824"],"updated_at":"2026-11-02T14:11:35.93863Z"}]}}