{"cve":"CVE-2024-47491","nvd":{"published":"2024-10-11T16:15:09.060","modified":"2026-06-17T07:57:10.317","status":"Analyzed","description":"An Improper Handling of Exceptional Conditions vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a network-based, unauthenticated attacker to cause Denial of Service (DoS).\n\nWhen a BGP UPDATE with malformed path attribute is received over an established BGP session, rpd crashes and restarts. \n\nContinuous receipt of a BGP UPDATE with a specifically malformed path attribute will create a sustained Denial of Service (DoS) condition for impacted devices. While this issue affects systems running 32-bit and 64-bit systems, the probability of impact on 64-bit system is extremely low. \nAccording to  KB25803  https://supportportal.juniper.net/s/article/Junos-How-to-check-if-Junos-OS-is-64-or-32-bit-on-a-router , customers can confirm 32-bit or 64-bit system via the ' show version detail ' command:\n\n\n\n     lab@router> show version detail| match 32\n     JUNOS 32-bit kernel Software Suite \n\n     lab@router> show version detail| match 64\n     JUNOS 64-bit kernel Software Suite \n\n\nThis issue affects:\n\n Juniper Networks Junos OS: \n\n  *  All versions before 21.4R3-S8, \n  *  from 22.2 before 22.2R3-S4, \n  *  from 22.4 before 22.4R3-S3, \n  *  from 23.2 before 23.2R2-S1, \n  *  from 23.4 before 23.4R1-S2, 23.4R2.\n\n\n Juniper Networks Junos OS Evolved:   *  All versions before 21.4R3-S8-EVO, \n  *  from 22.2 before 22.2R3-S4-EVO, \n  *  from 22.4 before 22.4R3-S3-EVO,\n  *  from 23.2 before 23.2R2-S1-EVO, \n  *  from 23.4 before 23.4R1-S2-EVO, 23.4R2-EVO.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L","score":8.2},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","score":5.9},"cwes":["CWE-755"],"references":["https://supportportal.juniper.net/"],"products":["juniper:junos","juniper:junos_os_evolved"],"source":"nvd","synced_at":"2026-10-19T21:55:31.737901711+00:00"},"epss":{"cve":"CVE-2024-47491","score":0.00597,"percentile":0.48537,"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."]}