{"id":"CVE-2025-21602","state":"PUBLISHED","title":"Junos OS and Junos OS Evolved: Receipt of specially crafted BGP update packet causes RPD crash","description":"An Improper Handling of Exceptional Conditions vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker sending a specific BGP update packet to cause rpd to crash and restart, resulting in a Denial of Service (DoS). \n\nContinuous receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.\n\nThis issue affects iBGP and eBGP, and both IPv4 and IPv6 are affected by this vulnerability.\n\nThis issue affects Junos OS: \n\n\n\n  *  from 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\nThis issue does not affect versions prior to 21.1R1.\n\n\n\n\n\nJunos OS Evolved: \n\n\n\n  *  from 21.4 before 21.4R3-S9-EVO, \n  *  from 22.2 before 22.2R3-S5-EVO, \n  *  from 22.3 before 22.3R3-S4-EVO,\n  *  from 22.4 before 22.4R3-S5-EVO, \n  *  from 23.2 before 23.2R2-S3-EVO, \n  *  from 23.4 before 23.4R2-S3-EVO, \n  *  from 24.2 before 24.2R1-S2-EVO, 24.2R2-EVO.\n\n\nThis issue does not affect versions prior to 21.1R1-EVO","publishedAt":"2025-01-09T16:49:25.387Z","updatedAt":"2025-01-09T19:22:10.606Z","severity":{"score":7.1,"label":"High","version":"4.0","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","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-S9","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2R3-S5","versionType":"semver"},{"version":"22.3","status":"affected","lessThan":"22.3R3-S4","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R3-S5","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2R2-S3","versionType":"semver"},{"version":"23.4","status":"affected","lessThan":"23.4R2-S3","versionType":"semver"},{"version":"24.2","status":"affected","lessThan":"24.2R1-S2, 24.2R2","versionType":"semver"},{"version":"0","status":"unaffected","lessThan":"21.3R1","versionType":"semver"}]},{"vendor":"Juniper Networks","product":"Junos OS Evolved","defaultStatus":"unaffected","versions":[{"version":"21.4","status":"affected","lessThan":"21.4R3-S9-EVO","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2R3-S5-EVO","versionType":"semver"},{"version":"22.3","status":"affected","lessThan":"22.3R3-S4-EVO","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R3-S5-EVO","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2R2-S3-EVO","versionType":"semver"},{"version":"23.4","status":"affected","lessThan":"23.4R2-S3-EVO","versionType":"semver"},{"version":"24.2","status":"affected","lessThan":"24.2R1-S2-EVO, 24.2R2-EVO","versionType":"semver"},{"version":"0","status":"unaffected","lessThan":"21.3R1-EVO","versionType":"semver"}]}],"references":["https://supportportal.juniper.net/JSA92872"],"weaknesses":["CWE-755"],"ingestedAt":"2026-10-29T20:08:39.238Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/21xxx/CVE-2025-21602.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-21602","state":"PUBLISHED","datePublished":"2025-01-09T16:49:25.387Z","dateUpdated":"2025-01-09T19:22:10.606Z","assignerShortName":"juniper","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateReserved":"2024-12-26T14:47:11.670Z"},"containers":{"cna":{"title":"Junos OS and Junos OS Evolved: Receipt of specially crafted BGP update packet causes RPD crash","descriptions":[{"lang":"en","value":"An Improper Handling of Exceptional Conditions vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker sending a specific BGP update packet to cause rpd to crash and restart, resulting in a Denial of Service (DoS). \n\nContinuous receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.\n\nThis issue affects iBGP and eBGP, and both IPv4 and IPv6 are affected by this vulnerability.\n\nThis issue affects Junos OS: \n\n\n\n  *  from 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\nThis issue does not affect versions prior to 21.1R1.\n\n\n\n\n\nJunos OS Evolved: \n\n\n\n  *  from 21.4 before 21.4R3-S9-EVO, \n  *  from 22.2 before 22.2R3-S5-EVO, \n  *  from 22.3 before 22.3R3-S4-EVO,\n  *  from 22.4 before 22.4R3-S5-EVO, \n  *  from 23.2 before 23.2R2-S3-EVO, \n  *  from 23.4 before 23.4R2-S3-EVO, \n  *  from 24.2 before 24.2R1-S2-EVO, 24.2R2-EVO.\n\n\nThis issue does not affect versions prior to 21.1R1-EVO"}],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","defaultStatus":"unaffected","versions":[{"version":"21.4","status":"affected","lessThan":"21.4R3-S9","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2R3-S5","versionType":"semver"},{"version":"22.3","status":"affected","lessThan":"22.3R3-S4","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R3-S5","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2R2-S3","versionType":"semver"},{"version":"23.4","status":"affected","lessThan":"23.4R2-S3","versionType":"semver"},{"version":"24.2","status":"affected","lessThan":"24.2R1-S2, 24.2R2","versionType":"semver"},{"version":"0","status":"unaffected","lessThan":"21.3R1","versionType":"semver"}]},{"vendor":"Juniper Networks","product":"Junos OS Evolved","defaultStatus":"unaffected","versions":[{"version":"21.4","status":"affected","lessThan":"21.4R3-S9-EVO","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2R3-S5-EVO","versionType":"semver"},{"version":"22.3","status":"affected","lessThan":"22.3R3-S4-EVO","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R3-S5-EVO","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2R2-S3-EVO","versionType":"semver"},{"version":"23.4","status":"affected","lessThan":"23.4R2-S3-EVO","versionType":"semver"},{"version":"24.2","status":"affected","lessThan":"24.2R1-S2-EVO, 24.2R2-EVO","versionType":"semver"},{"version":"0","status":"unaffected","lessThan":"21.3R1-EVO","versionType":"semver"}]}],"references":[{"url":"https://supportportal.juniper.net/JSA92872","tags":["vendor-advisory"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/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":"NO","Recovery":"AUTOMATIC","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"ADJACENT","baseScore":7.1,"baseSeverity":"HIGH","privilegesRequired":"NONE","providerUrgency":"GREEN","subAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"CONCENTRATED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"MODERATE"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-755","description":"CWE-755 Improper Handling of Exceptional Conditions","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"juniper","orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateUpdated":"2025-01-09T16:49:25.387Z"},"credits":[{"lang":"en","type":"finder","value":"Juniper SIRT would like to acknowledge and thank Craig Dods from Meta’s Infrastructure Security Engineering team for responsibly reporting this vulnerability."}],"datePublic":"2025-01-08T17:00:00.000Z","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><br>Junos OS Evolved: 21.4R3-S9-EVO, 22.2R3-S5-EVO, 22.3R3-S4-EVO, 22.4R3-S5-EVO, 23.2R2-S3-EVO*, 23.4R2-S3-EVO, 24.2R1-S2-EVO, 24.2R2-EVO*, 24.4R1-EVO, and all subsequent releases. <br><br>Junos OS: 21.4R3-S9, 22.2R3-S5, 22.3R3-S4, 22.4R3-S5, 23.2R2-S3*, 23.4R2-S3, 24.2R1-S2, 24.2R2*, 24.4R1, and all subsequent releases.<br><br>* Future Release"}],"value":"The following software releases have been updated to resolve this specific issue: \n\nJunos OS Evolved: 21.4R3-S9-EVO, 22.2R3-S5-EVO, 22.3R3-S4-EVO, 22.4R3-S5-EVO, 23.2R2-S3-EVO*, 23.4R2-S3-EVO, 24.2R1-S2-EVO, 24.2R2-EVO*, 24.4R1-EVO, and all subsequent releases. \n\nJunos OS: 21.4R3-S9, 22.2R3-S5, 22.3R3-S4, 22.4R3-S5, 23.2R2-S3*, 23.4R2-S3, 24.2R1-S2, 24.2R2*, 24.4R1, and all subsequent releases.\n\n* Future Release"}],"source":{"advisory":"JSA92872","defect":["1828380"],"discovery":"EXTERNAL"},"workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"There are no known workarounds for this issue."}],"value":"There are no known workarounds for this issue."}],"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-01-09T19:10:59.249131Z","id":"CVE-2025-21602","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":"2025-01-09T19:22:10.606Z"}}]}}}