{"id":"CVE-2025-30651","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-30651","generatedAt":"2026-10-28T10:47:36.815Z","title":"A Buffer Access with Incorrect Length Value vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).","description":"A Buffer Access with Incorrect Length Value vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).\nWhen an attacker sends a specific ICMPv6 packet to an interface with \"protocols router-advertisement\" configured, rpd crashes and restarts. Continued receipt of this packet will cause a sustained DoS condition. \n\n\n\n\nThis issue only affects systems configured with IPv6.\n\n\n\nThis issue affects Junos OS: \n\n\n  *  All versions before 21.2R3-S9, \n  *  from 21.4 before 21.4R3-S10, \n  *  from 22.2 before 22.2R3-S6, \n  *  from 22.4 before 22.4R3-S4, \n  *  from 23.2 before 23.2R2-S2, \n  *  from 23.4 before 23.4R2; \n\n\n\nand Junos OS Evolved: \n  *  All versions before 21.2R3-S9-EVO, \n  *  from 21.4-EVO before 21.4R3-S10-EVO, \n  *  from 22.2-EVO before 22.2R3-S6-EVO, \n  *  from 22.4-EVO before 22.4R3-S4-EVO, \n  *  from 23.2-EVO before 23.2R2-S2-EVO, \n  *  from 23.4-EVO before 23.4R2-EVO.","published":"2025-04-09T20:15:29.000Z","lastModified":"2026-06-17T09:09:06.000Z","status":"Analyzed","sourceIdentifier":"sirt@juniper.net","cvss":{"version":"4.0","score":8.7,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/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/M"},"cwe":["CWE-805"],"affected":["juniper/junos","juniper/junos os evolved"],"epss":{"score":0.00424,"percentile":0.36511,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.42%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://supportportal.juniper.net/JSA96461","tags":["Vendor Advisory"],"source":"sirt@juniper.net"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-30651","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}