{"id":"CVE-2025-30645","state":"PUBLISHED","title":"Junos OS: SRX Series: Transmission of specific control traffic sent out of a DS-Lite tunnel results in flowd crash","description":"A NULL Pointer Dereference vulnerability in the flow daemon (flowd) of Juniper Networks Junos OS on SRX Series allows an attacker causing specific, valid control traffic to be sent out of a Dual-Stack (DS) Lite tunnel to crash the flowd process, resulting in a Denial of Service (DoS).  Continuous triggering of specific control traffic will create a sustained Denial of Service (DoS) condition.\n\nOn all SRX platforms, when specific, valid control traffic needs to be sent out of a DS-Lite tunnel, a segmentation fault occurs within the flowd process, resulting in a network outage until the flowd process restarts.\n\nThis issue affects Junos OS on SRX Series: \n  *  All versions before 21.2R3-S9, \n  *  from 21.4 before 21.4R3-S9, \n  *  from 22.2 before 22.2R3-S5, \n  *  from 22.4 before 22.4R3-S6, \n  *  from 23.2 before 23.2R2-S3, \n  *  from 23.4 before 23.4R2.","publishedAt":"2025-04-09T19:52:51.730Z","updatedAt":"2025-04-24T20:04:34.131Z","severity":{"score":8.7,"label":"High","version":"4.0","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:N/AU:Y/R:A/V:C/RE:M/U:Green","source":"juniper"},"assigner":"juniper","products":["Juniper Networks Junos OS"],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"21.2R3-S9","versionType":"semver"},{"version":"21.4","status":"affected","lessThan":"21.4R3-S9","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2R3-S5","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R3-S6","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2R2-S3","versionType":"semver"},{"version":"23.4","status":"affected","lessThan":"23.4R2","versionType":"semver"}],"platforms":["SRX Series"]}],"references":["https://supportportal.juniper.net/JSA96455"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T20:08:55.257Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/30xxx/CVE-2025-30645.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-30645","state":"PUBLISHED","datePublished":"2025-04-09T19:52:51.730Z","dateUpdated":"2025-04-24T20:04:34.131Z","assignerShortName":"juniper","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateReserved":"2025-03-24T19:34:11.320Z"},"containers":{"cna":{"title":"Junos OS: SRX Series: Transmission of specific control traffic sent out of a DS-Lite tunnel results in flowd crash","descriptions":[{"lang":"en","value":"A NULL Pointer Dereference vulnerability in the flow daemon (flowd) of Juniper Networks Junos OS on SRX Series allows an attacker causing specific, valid control traffic to be sent out of a Dual-Stack (DS) Lite tunnel to crash the flowd process, resulting in a Denial of Service (DoS).  Continuous triggering of specific control traffic will create a sustained Denial of Service (DoS) condition.\n\nOn all SRX platforms, when specific, valid control traffic needs to be sent out of a DS-Lite tunnel, a segmentation fault occurs within the flowd process, resulting in a network outage until the flowd process restarts.\n\nThis issue affects Junos OS on SRX Series: \n  *  All versions before 21.2R3-S9, \n  *  from 21.4 before 21.4R3-S9, \n  *  from 22.2 before 22.2R3-S5, \n  *  from 22.4 before 22.4R3-S6, \n  *  from 23.2 before 23.2R2-S3, \n  *  from 23.4 before 23.4R2."}],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"21.2R3-S9","versionType":"semver"},{"version":"21.4","status":"affected","lessThan":"21.4R3-S9","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2R3-S5","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R3-S6","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2R2-S3","versionType":"semver"},{"version":"23.4","status":"affected","lessThan":"23.4R2","versionType":"semver"}],"platforms":["SRX Series"]}],"references":[{"url":"https://supportportal.juniper.net/JSA96455","tags":["vendor-advisory"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/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":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","privilegesRequired":"NONE","providerUrgency":"GREEN","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"CONCENTRATED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/AU:Y/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-476","description":"CWE-476 NULL Pointer Dereference","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"juniper","orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateUpdated":"2025-04-24T20:04:34.131Z"},"configurations":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Exploitation of this issue requires DS-Lite tunneling to be configured on the SRX Series device:<br><br><tt>[ security softwires softwire-name &lt;name&gt;&nbsp;softwire-concentrator ...]</tt>"}],"value":"Exploitation of this issue requires DS-Lite tunneling to be configured on the SRX Series device:\n\n[ security softwires softwire-name <name> softwire-concentrator ...]"}],"datePublic":"2025-04-09T16:00:00.000Z","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: Junos OS 21.2R3-S9, 21.4R3-S9, 22.2R3-S5, 22.4R3-S6, 23.2R2-S3, 23.4R2, 24.2R1, and all subsequent releases."}],"value":"The following software releases have been updated to resolve this specific issue: Junos OS 21.2R3-S9, 21.4R3-S9, 22.2R3-S5, 22.4R3-S6, 23.2R2-S3, 23.4R2, 24.2R1, and all subsequent releases."}],"source":{"advisory":"JSA96455","defect":["1779792"],"discovery":"INTERNAL"},"timeline":[{"lang":"en","time":"2025-04-09T16:00:00.000Z","value":"Initial Publication"},{"lang":"en","time":"2025-04-24T16:00:00.000Z","value":"Corrected configuration example for SRX Series"}],"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":"2025-04-09T20:40:11.024712Z","id":"CVE-2025-30645","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-04-09T20:40:21.092Z"}}]}}}