{"cve":"CVE-2025-21600","nvd":{"published":"2025-01-09T17:15:18.960","modified":"2026-06-17T08:43:49.590","status":"Analyzed","description":"An Out-of-Bounds Read vulnerability in\n\nthe routing protocol daemon (rpd) of \n\n Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, logically adjacent BGP peer sending a specifically malformed BGP packet to cause rpd to crash and restart, resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.\n\n\n\nThis issue only affects systems configured in\n      either of two ways:\n\n    \n    \n        *  systems with BGP traceoptions enabled\n\n        *  systems with BGP family traffic-engineering (BGP-LS)\n          configured\n\n\n and can be exploited from a directly connected and configured BGP peer. \n\nThis issue affects iBGP and eBGP \n\nwith \n\nany address family\n\n configured, and both IPv4 and IPv6 are affected by this vulnerability.\n\nThis issue affects:\n\nJunos OS: \n\n\n\n  *  \n\nfrom 21.4 before 21.4R3-S9, \n  *  from 22.2 before 22.2R3-S5, \n  *  from 22.3 before 22.3R3-S4, \n  *  from 22.4 before 22.4R3-S5, \n  *  from 23.2 before 23.2R2-S3, \n  *  from 23.4 before 23.4R2-S3, \n  *  from 24.2 before 24.2R1-S2, 24.2R2; \n\n\n\n\nJunos OS Evolved: \n\n\n\n  *  from 21.4-EVO before 21.4R3-S9-EVO, \n  *  from 22.2-EVO before 22.2R3-S5-EVO, \n  *  from 22.3-EVO before 22.3R3-S4-EVO, \n  *  from 22.4-EVO before 22.4R3-S5-EVO, \n  *  from 23.2-EVO before 23.2R2-S3-EVO, \n  *  from 23.4-EVO before 23.4R2-S2-EVO, \n  *  from 24.2-EVO before 24.2R1-S2-EVO, 24.2R2-EVO.\n\n\nThis issue does not affect versions of Junos OS prior to 21.3R1.\n\n\nThis issue does not affect versions of Junos OS Evolved prior to 21.3R1-EVO.\n\n\n\nThis is a similar, but different vulnerability than the issue reported as CVE-2024-39516.","cvss_v4":{"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:N/R:A/V:C/RE:M/U:Green","score":7.1},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":6.5},"cwes":["CWE-125"],"references":["https://supportportal.juniper.net/JSA92870"],"products":["juniper:junos","juniper:junos_os_evolved"],"source":"nvd","synced_at":"2026-10-19T21:58:20.756570362+00:00"},"epss":{"cve":"CVE-2025-21600","score":0.00252,"percentile":0.1671,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}