{"id":"CVE-2026-33786","state":"PUBLISHED","title":"Junos OS: SRX1600, SRX2300, SRX4300: When a specific show command is executed chassisd crashes","description":"An Improper Check for Unusual or Exceptional Conditions vulnerability in the chassis control daemon (chassisd) of Juniper Networks Junos OS on SRX1600, SRX2300 and SRX4300 allows a local attacker with low privileges to cause a complete Denial of Service (DoS).\n\nWhen a specific 'show chassis' CLI command is executed, chassisd crashes and restarts which causes a momentary impact to all traffic until all modules are online again.\n\nThis issue affects Junos OS on SRX1600, SRX2300 and SRX4300:\n\n\n\n  *  24.4 versions before 24.4R1-S3, 24.4R2.\n\n\nThis issue does not affect Junos OS versions before 24.4R1.","publishedAt":"2026-04-09T21:28:29.648Z","updatedAt":"2026-04-13T18:06:20.220Z","severity":{"score":6.8,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/RE:M","source":"juniper"},"assigner":"juniper","products":["Juniper Networks Junos OS"],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","defaultStatus":"unaffected","versions":[{"version":"24.4","status":"affected","lessThan":"24.4R1-S3, 24.4R2","versionType":"semver"}],"platforms":["SRX1600","SRX2300","SRX4300"]}],"references":["https://kb.juniper.net/JSA107810"],"weaknesses":["CWE-754"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/33xxx/CVE-2026-33786.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-33786","state":"PUBLISHED","datePublished":"2026-04-09T21:28:29.648Z","dateUpdated":"2026-04-13T18:06:20.220Z","assignerShortName":"juniper","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateReserved":"2026-03-23T19:46:13.670Z"},"containers":{"cna":{"title":"Junos OS: SRX1600, SRX2300, SRX4300: When a specific show command is executed chassisd crashes","descriptions":[{"lang":"en","value":"An Improper Check for Unusual or Exceptional Conditions vulnerability in the chassis control daemon (chassisd) of Juniper Networks Junos OS on SRX1600, SRX2300 and SRX4300 allows a local attacker with low privileges to cause a complete Denial of Service (DoS).\n\nWhen a specific 'show chassis' CLI command is executed, chassisd crashes and restarts which causes a momentary impact to all traffic until all modules are online again.\n\nThis issue affects Junos OS on SRX1600, SRX2300 and SRX4300:\n\n\n\n  *  24.4 versions before 24.4R1-S3, 24.4R2.\n\n\nThis issue does not affect Junos OS versions before 24.4R1."}],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","defaultStatus":"unaffected","versions":[{"version":"24.4","status":"affected","lessThan":"24.4R1-S3, 24.4R2","versionType":"semver"}],"platforms":["SRX1600","SRX2300","SRX4300"]}],"references":[{"url":"https://kb.juniper.net/JSA107810","tags":["vendor-advisory"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/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":"LOCAL","baseScore":6.8,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/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":"2026-04-09T21:28:29.648Z"},"datePublic":"2026-04-08T08:21:00.000Z","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: 24.4R1-S3, 24.4R2, 25.2R1, and all subsequent releases.<br>"}],"value":"The following software releases have been updated to resolve this specific issue: 24.4R1-S3, 24.4R2, 25.2R1, and all subsequent releases."}],"source":{"advisory":"JSA107810","defect":["1869996"],"discovery":"INTERNAL"},"workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Use access lists or firewall filters to limit access to the CLI only from trusted hosts and administrators.<br><br>Utilize CLI authorization to disallow execution of the 'show chassis' command.<br>"}],"value":"Use access lists or firewall filters to limit access to the CLI only from trusted hosts and administrators.\n\nUtilize CLI authorization to disallow execution of the 'show chassis' command."}],"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-33786","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-04-13T17:39:17.275005Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-13T18:06:20.220Z"}}]}}}