{"id":"CVE-2025-30660","state":"PUBLISHED","title":"Junos OS: MX Series: Decapsulation of specific GRE packets leads to PFE reset","description":"An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on MX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).When processing a high rate of specific GRE traffic destined to the device, the respective PFE will hang causing traffic forwarding to stop. \n\n\n\nWhen this issue occurs the following logs can be observed:\n\n <fpc #> MQSS(0): LI-3: Received a parcel with more than 512B accompanying data \nCHASSISD_FPC_ASIC_ERROR: ASIC Error detected <...>\n\n\nThis issue affects Junos OS:\n\n  *  all versions before 21.2R3-S9,\n  *  21.4 versions before 21.4R3-S8,\n  *  22.2 versions before 22.2R3-S4,\n  *  22.4 versions before 22.4R3-S5,\n  *  23.2 versions before 23.2R2-S2,\n  *  23.4 versions before 23.4R2.","publishedAt":"2025-04-09T20:05:25.345Z","updatedAt":"2025-04-09T20:29:59.919Z","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/RE:M","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-S8","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2R3-S4","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R3-S5","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2R2-S2","versionType":"semver"},{"version":"23.4","status":"affected","lessThan":"23.4R2","versionType":"semver"}],"platforms":["MX Series"]}],"references":["https://supportportal.juniper.net/JSA96471"],"weaknesses":["CWE-754"],"ingestedAt":"2026-10-29T20:08:55.257Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/30xxx/CVE-2025-30660.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-30660","state":"PUBLISHED","datePublished":"2025-04-09T20:05:25.345Z","dateUpdated":"2025-04-09T20:29:59.919Z","assignerShortName":"juniper","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateReserved":"2025-03-24T19:34:11.323Z"},"containers":{"cna":{"title":"Junos OS: MX Series: Decapsulation of specific GRE packets leads to PFE reset","descriptions":[{"lang":"en","value":"An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on MX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).When processing a high rate of specific GRE traffic destined to the device, the respective PFE will hang causing traffic forwarding to stop. \n\n\n\nWhen this issue occurs the following logs can be observed:\n\n <fpc #> MQSS(0): LI-3: Received a parcel with more than 512B accompanying data \nCHASSISD_FPC_ASIC_ERROR: ASIC Error detected <...>\n\n\nThis issue affects Junos OS:\n\n  *  all versions before 21.2R3-S9,\n  *  21.4 versions before 21.4R3-S8,\n  *  22.2 versions before 22.2R3-S4,\n  *  22.4 versions before 22.4R3-S5,\n  *  23.2 versions before 23.2R2-S2,\n  *  23.4 versions 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-S8","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2R3-S4","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R3-S5","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2R2-S2","versionType":"semver"},{"version":"23.4","status":"affected","lessThan":"23.4R2","versionType":"semver"}],"platforms":["MX Series"]}],"references":[{"url":"https://supportportal.juniper.net/JSA96471","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":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","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/RE:M","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"MODERATE"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-754","description":"CWE-754 Improper Check for Unusual or Exceptional Conditions","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"juniper","orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateUpdated":"2025-04-09T20:05:25.345Z"},"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: 21.2R3-S9, 21.4R3-S8, 22.2R3-S4, 22.4R3-S5, 23.2R2-S2, 23.4R2, 24.2R1, and all subsequent releases."}],"value":"The following software releases have been updated to resolve this specific issue: 21.2R3-S9, 21.4R3-S8, 22.2R3-S4, 22.4R3-S5, 23.2R2-S2, 23.4R2, 24.2R1, and all subsequent releases."}],"source":{"advisory":"JSA96471","defect":["1784246"],"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":"2025-04-09T20:29:51.260047Z","id":"CVE-2025-30660","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":"2025-04-09T20:29:59.919Z"}}]}}}