{"id":"CVE-2025-30649","state":"PUBLISHED","title":"Junos OS: MX240, MX480, MX960 with SPC3: An attacker sending specific packets will cause a CPU utilization DoS.","description":"An Improper Input Validation vulnerability in the syslog stream TCP transport of Juniper Networks Junos OS on MX240, MX480 and MX960 devices with MX-SPC3 Security Services Card allows an unauthenticated, network-based attacker, to send specific spoofed packets to cause a CPU Denial of Service (DoS) to the MX-SPC3 SPUs.\n\nContinued receipt and processing of these specific packets will sustain the DoS condition.\n\nThis issue affects Junos OS:  *  All versions before 22.2R3-S6,\n  *  from 22.4 before 22.4R3-S4,\n  *  from 23.2 before 23.2R2-S3,\n  *  from 23.4 before 23.4R2-S4,\n  *  from 24.2 before 24.2R1-S2, 24.2R2\n\n\nAn indicator of compromise will indicate the SPC3 SPUs utilization has spiked.\n\n\nFor example: \n   user@device> show services service-sets summary\n                     Service sets                                                                               CPU\n  Interface          configured       Bytes used             Session bytes used        Policy bytes used        utilization\n  \"interface\"          1              \"bytes\" (percent%)     \"sessions\" (\"percent\"%)   \"bytes\" (\"percent\"%)     99.97 % OVLD  <<<<<< look for high CPU usage","publishedAt":"2025-04-09T19:55:37.363Z","updatedAt":"2025-04-09T20:03:04.073Z","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:L/AU:Y/R:U/V:C/RE:M/U:Amber","source":"juniper"},"assigner":"juniper","products":["Juniper Networks Junos OS"],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"22.2R3-S6","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R3-S4","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2R2-S3","versionType":"semver"},{"version":"23.4","status":"affected","lessThan":"23.4R2-S4","versionType":"semver"},{"version":"24.2","status":"affected","lessThan":"24.2R1-S2, 24.2R2","versionType":"semver"}],"modules":["syslog stream with TCP transport enabled"],"platforms":["MX240","MX480","MX960","with SPC3"]}],"references":["https://supportportal.juniper.net/JSA96459"],"weaknesses":["CWE-20"],"ingestedAt":"2026-10-29T20:08:55.257Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/30xxx/CVE-2025-30649.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-30649","state":"PUBLISHED","datePublished":"2025-04-09T19:55:37.363Z","dateUpdated":"2025-04-09T20:03:04.073Z","assignerShortName":"juniper","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateReserved":"2025-03-24T19:34:11.321Z"},"containers":{"cna":{"title":"Junos OS: MX240, MX480, MX960 with SPC3: An attacker sending specific packets will cause a CPU utilization DoS.","descriptions":[{"lang":"en","value":"An Improper Input Validation vulnerability in the syslog stream TCP transport of Juniper Networks Junos OS on MX240, MX480 and MX960 devices with MX-SPC3 Security Services Card allows an unauthenticated, network-based attacker, to send specific spoofed packets to cause a CPU Denial of Service (DoS) to the MX-SPC3 SPUs.\n\nContinued receipt and processing of these specific packets will sustain the DoS condition.\n\nThis issue affects Junos OS:  *  All versions before 22.2R3-S6,\n  *  from 22.4 before 22.4R3-S4,\n  *  from 23.2 before 23.2R2-S3,\n  *  from 23.4 before 23.4R2-S4,\n  *  from 24.2 before 24.2R1-S2, 24.2R2\n\n\nAn indicator of compromise will indicate the SPC3 SPUs utilization has spiked.\n\n\nFor example: \n   user@device> show services service-sets summary\n                     Service sets                                                                               CPU\n  Interface          configured       Bytes used             Session bytes used        Policy bytes used        utilization\n  \"interface\"          1              \"bytes\" (percent%)     \"sessions\" (\"percent\"%)   \"bytes\" (\"percent\"%)     99.97 % OVLD  <<<<<< look for high CPU usage"}],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"22.2R3-S6","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R3-S4","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2R2-S3","versionType":"semver"},{"version":"23.4","status":"affected","lessThan":"23.4R2-S4","versionType":"semver"},{"version":"24.2","status":"affected","lessThan":"24.2R1-S2, 24.2R2","versionType":"semver"}],"modules":["syslog stream with TCP transport enabled"],"platforms":["MX240","MX480","MX960","with SPC3"]}],"references":[{"url":"https://supportportal.juniper.net/JSA96459","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":"USER","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","privilegesRequired":"NONE","providerUrgency":"AMBER","subAvailabilityImpact":"LOW","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:L/AU:Y/R:U/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-20","description":"CWE-20 Improper Input Validation","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"juniper","orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateUpdated":"2025-04-09T19:55:37.363Z"},"configurations":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>&nbsp; [services service-set \"service-set-name\" syslog stream \"stream-name\" host \"syslog-server-ip-address-or-hostname\"]<br>&nbsp; [services service-set \"service-set-name\" syslog stream \"stream-name\" host port \"syslog-server-port\"]<br><span style=\"background-color: var(--wht);\">&nbsp; [services service-set \"service-set-name\" syslog stream \"stream-name\" transport protocol tcp]<br></span><span style=\"background-color: var(--wht);\">&nbsp; [services service-set \"service-set-name\" syslog stream \"stream-name\" source-address \"syslog-collector-ip-address\"]</span><br></p>"}],"value":"[services service-set \"service-set-name\" syslog stream \"stream-name\" host \"syslog-server-ip-address-or-hostname\"]\n  [services service-set \"service-set-name\" syslog stream \"stream-name\" host port \"syslog-server-port\"]\n  [services service-set \"service-set-name\" syslog stream \"stream-name\" transport protocol tcp]\n  [services service-set \"service-set-name\" syslog stream \"stream-name\" source-address \"syslog-collector-ip-address\"]"}],"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: 22.2R3-S6, 22.4R3-S4, 23.2R2-S3, 23.4R2-S4, 24.2R1-S2, 24.2R2, 24.4R1, and all subsequent releases.<br>"}],"value":"The following software releases have been updated to resolve this specific issue: Junos OS: 22.2R3-S6, 22.4R3-S4, 23.2R2-S3, 23.4R2-S4, 24.2R1-S2, 24.2R2, 24.4R1, and all subsequent releases."}],"source":{"advisory":"JSA96459","defect":["1823932"],"discovery":"USER"},"timeline":[{"lang":"en","time":"2025-04-09T16:00:00.000Z","value":"Initial Publication"}],"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":"2025-04-09T20:02:41.255699Z","id":"CVE-2025-30649","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":"2025-04-09T20:03:04.073Z"}}]}}}