{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-52949","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","state":"PUBLISHED","assignerShortName":"juniper","dateReserved":"2025-06-23T13:16:01.408Z","datePublished":"2025-07-11T14:40:41.658Z","dateUpdated":"2025-07-11T15:05:58.938Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Junos OS","vendor":"Juniper Networks","versions":[{"lessThan":"21.4R3-S11","status":"affected","version":"0","versionType":"semver"},{"lessThan":"22.2R3-S7","status":"affected","version":"22.2","versionType":"semver"},{"lessThan":"22.4R3-S7","status":"affected","version":"22.4","versionType":"semver"},{"lessThan":"23.2R2-S4","status":"affected","version":"23.2","versionType":"semver"},{"lessThan":"23.4R2-S5","status":"affected","version":"23.4","versionType":"semver"},{"lessThan":"24.2R2-S1","status":"affected","version":"24.2","versionType":"semver"},{"lessThan":"24.4R1-S3, 24.4R2","status":"affected","version":"24.4","versionType":"semver"}]},{"defaultStatus":"unaffected","product":"Junos OS Evolved","vendor":"Juniper Networks","versions":[{"lessThan":"22.2R3-S7-EVO","status":"affected","version":"0","versionType":"semver"},{"lessThan":"22.4R3-S7-EVO","status":"affected","version":"22.4-EVO","versionType":"semver"},{"lessThan":"23.2R2-S4-EVO","status":"affected","version":"23.2-EVO","versionType":"semver"},{"lessThan":"23.4R2-S5-EVO","status":"affected","version":"23.4-EVO","versionType":"semver"},{"lessThan":"24.2R2-S1-EVO","status":"affected","version":"24.2-EVO","versionType":"semver"},{"lessThan":"24.4R1-S3-EVO, 24.4R2-EVO","status":"affected","version":"24.4-EVO","versionType":"semver"}]}],"configurations":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"This issue only affects systems configured for EVPN signaling.  For example:

[protocols bgp family evpn signaling]"}],"value":"This issue only affects systems configured for EVPN signaling.  For example:\n\n[protocols bgp family evpn signaling]"}],"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":"2025-07-09T16:00:00.000Z","descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"An Improper Handling of Length Parameter Inconsistency vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a 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.

Only systems configured for Ethernet Virtual Private Networking (EVPN) signaling are vulnerable to this issue. 

This issue affects iBGP and eBGP, and both IPv4 and IPv6 are affected by this vulnerability.

This issue affects:

Junos OS: 

Junos OS Evolved: 

"}],"value":"An Improper Handling of Length Parameter Inconsistency vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a 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\nOnly systems configured for Ethernet Virtual Private Networking (EVPN) signaling are vulnerable to this issue. \n\nThis issue affects iBGP and eBGP, and both IPv4 and IPv6 are affected by this vulnerability.This issue affects:\n\nJunos OS: \n\n\n\n * all versions before 21.4R3-S11, \n * from 22.2 before 22.2R3-S7, \n * from 22.4 before 22.4R3-S7, \n * from 23.2 before 23.2R2-S4, \n * from 23.4 before 23.4R2-S5, \n * from 24.2 before 24.2R2-S1, \n * from 24.4 before 24.4R1-S3, 24.4R2; \n\n\n\n\nJunos OS Evolved: \n\n\n\n * all versions before 22.2R3-S7-EVO, \n * from 22.4-EVO before 22.4R3-S7-EVO, \n * from 23.2-EVO before 23.2R2-S4-EVO, \n * from 23.4-EVO before 23.4R2-S5-EVO, \n * from 24.2-EVO before 24.2R2-S1-EVO, \n * from 24.4-EVO before 24.4R1-S3-EVO, 24.4R2-EVO."}],"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."}],"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":"YES","Recovery":"AUTOMATIC","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"ADJACENT","baseScore":7.1,"baseSeverity":"HIGH","privilegesRequired":"NONE","providerUrgency":"AMBER","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:Y/R:A/V:C/RE:M/U:Amber","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"MODERATE"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-130","description":"CWE-130 Improper Handling of Length Parameter Inconsistency","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","shortName":"juniper","dateUpdated":"2025-07-11T14:40:41.658Z"},"references":[{"tags":["vendor-advisory"],"url":"https://supportportal.juniper.net/JSA100053"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"The following software releases have been updated to resolve this specific issue:

Junos OS: 21.4R3-S11, 22.2R3-S7, 22.4R3-S7, 23.2R2-S4, 23.4R2-S5, 24.2R2-S1, 24.4R1-S3, 24.4R2, 25.2R1, and all subsequent releases.
Junos OS Evolved: 22.2R3-S7-EVO, 22.4R3-S7-EVO, 23.2R2-S4-EVO, 23.4R2-S5-EVO, 24.2R2-S1-EVO, 24.4R1-S3-EVO, 24.4R2-EVO, 25.2R1-EVO, and all subsequent releases.
"}],"value":"The following software releases have been updated to resolve this specific issue: \n\nJunos OS: 21.4R3-S11, 22.2R3-S7, 22.4R3-S7, 23.2R2-S4, 23.4R2-S5, 24.2R2-S1, 24.4R1-S3, 24.4R2, 25.2R1, and all subsequent releases.\nJunos OS Evolved: 22.2R3-S7-EVO, 22.4R3-S7-EVO, 23.2R2-S4-EVO, 23.4R2-S5-EVO, 24.2R2-S1-EVO, 24.4R1-S3-EVO, 24.4R2-EVO, 25.2R1-EVO, and all subsequent releases."}],"source":{"advisory":"JSA100053","defect":["1863170"],"discovery":"EXTERNAL"},"title":"Junos OS and Junos OS Evolved: In an EVPN environment, receipt of specifically malformed BGP update causes RPD crash","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":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-07-11T15:05:51.634973Z","id":"CVE-2025-52949","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-07-11T15:05:58.938Z"}}]}}