{"id":"CVE-2025-59962","state":"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.","publishedAt":"2025-10-09T15:45:19.343Z","updatedAt":"2025-10-09T19:05:04.870Z","severity":{"score":6,"label":"Medium","version":"4.0","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","source":"juniper"},"assigner":"juniper","products":["Juniper Networks Junos OS","Juniper Networks Junos OS Evolved"],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","defaultStatus":"unaffected","versions":[{"version":"21.4","status":"affected","lessThan":"21.4R3-S6","versionType":"semver"},{"version":"22.1","status":"affected","lessThan":"22.1R3-S6","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2R3-S3","versionType":"semver"},{"version":"22.3","status":"affected","lessThan":"22.3R3-S3","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R3","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2R2","versionType":"semver"},{"version":"0","status":"unaffected","lessThan":"21.3R1","versionType":"semver"}]},{"vendor":"Juniper Networks","product":"Junos OS Evolved","defaultStatus":"unaffected","versions":[{"version":"22.3","status":"affected","lessThan":"22.3R3-S3-EVO","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R3-EVO","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2R2-EVO","versionType":"semver"},{"version":"0","status":"unaffected","lessThan":"21.3R1-EVO","versionType":"semver"}]}],"references":["https://supportportal.juniper.net/JSA103151"],"weaknesses":["CWE-824"],"ingestedAt":"2026-10-29T20:09:39.787Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/59xxx/CVE-2025-59962.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-59962","state":"PUBLISHED","datePublished":"2025-10-09T15:45:19.343Z","dateUpdated":"2025-10-09T19:05:04.870Z","assignerShortName":"juniper","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateReserved":"2025-09-23T18:19:06.955Z"},"containers":{"cna":{"title":"Junos OS and Junos OS Evolved: With BGP sharding enabled, change in indirect next-hop can cause RPD crash","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","defaultStatus":"unaffected","versions":[{"version":"21.4","status":"affected","lessThan":"21.4R3-S6","versionType":"semver"},{"version":"22.1","status":"affected","lessThan":"22.1R3-S6","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2R3-S3","versionType":"semver"},{"version":"22.3","status":"affected","lessThan":"22.3R3-S3","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R3","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2R2","versionType":"semver"},{"version":"0","status":"unaffected","lessThan":"21.3R1","versionType":"semver"}]},{"vendor":"Juniper Networks","product":"Junos OS Evolved","defaultStatus":"unaffected","versions":[{"version":"22.3","status":"affected","lessThan":"22.3R3-S3-EVO","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R3-EVO","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2R2-EVO","versionType":"semver"},{"version":"0","status":"unaffected","lessThan":"21.3R1-EVO","versionType":"semver"}]}],"references":[{"url":"https://supportportal.juniper.net/JSA103151","tags":["vendor-advisory"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]},{"cvssV4_0":{"Automatable":"YES","Recovery":"AUTOMATIC","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"ADJACENT","baseScore":6,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"CONCENTRATED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"MODERATE"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-824","description":"CWE-824 Access of Uninitialized Pointer","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"juniper","orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateUpdated":"2025-10-09T15:45:19.343Z"},"configurations":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Systems are only vulnerable to this issue if BGP sharding is enabled. For example:<br><br><tt>[ system processes routing bgp rib-sharding ]</tt>"}],"value":"Systems are only vulnerable to this issue if BGP sharding is enabled. For example:\n\n[ system processes routing bgp rib-sharding ]"}],"datePublic":"2025-10-08T16:00:00.000Z","exploits":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability."}],"value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability."}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"The following software releases have been updated to resolve this specific issue: <br>Junos OS&nbsp;<span style=\"background-color: rgb(255, 255, 255);\">21.4R3-S6, 22.1R3-S6, 22.2R3-S3, 22.3R3-S3, 22.4R3, 23.2R2, 23.4R1, and all subsequent releases.</span>\n\n<br>Junos OS Evolved 22.3R3-S3-EVO, 22.4R3-EVO, 23.2R2-EVO, 23.4R1-EVO, and all subsequent releases.<br><br>"}],"value":"The following software releases have been updated to resolve this specific issue: \nJunos OS 21.4R3-S6, 22.1R3-S6, 22.2R3-S3, 22.3R3-S3, 22.4R3, 23.2R2, 23.4R1, and all subsequent releases.\n\n\nJunos OS Evolved 22.3R3-S3-EVO, 22.4R3-EVO, 23.2R2-EVO, 23.4R1-EVO, and all subsequent releases."}],"source":{"advisory":"JSA103151","defect":["1756068"],"discovery":"USER"},"workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Temporarily disabling BGP sharding will mitigate this issue."}],"value":"Temporarily disabling BGP sharding will mitigate this issue."}],"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-10-09T19:04:53.957280Z","id":"CVE-2025-59962","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-09T19:05:04.870Z"}}]}}}