{"id":"CVE-2026-33802","state":"PUBLISHED","title":"Junos OS: EX Series: Unauthorized users can execute service-impacting CLI command","description":"A Missing Authorization vulnerability in the CLI of Juniper Networks Junos OS on EX Series allows a local, authenticated attacker to cause a Denial-of-Service (DoS).\n\n\n\nOn EX2300, EX4000, EX4100, EX4300-MP (Multigigabit) and EX4400 switches, an authenticated, local attacker with no specific permissions or class can execute a specific, privileged CLI 'request' command which will cause complete traffic impact until the system automatically recovers.\n\nThis issue affects Junos OS on EX2300, EX4000, EX4100, EX4300-MP (Multigigabit) and EX4400:\n\n\n  *  23.2R2 versions before 23.2R2-S6,\n  *  23.4 versions before 23.4R2-S8,\n  *  24.2 versions before 24.2R2-S4,\n  *  24.4 versions before 24.4R2-S3,\n  *  25.2 versions before 25.2R2,\n  *  25.4 versions before 25.4R1-S1.","publishedAt":"2026-07-09T21:03:48.353Z","updatedAt":"2026-07-10T13:28:31.126Z","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":"23.2R2","status":"affected","lessThan":"23.2R2-S6","versionType":"custom"},{"version":"23.4","status":"affected","lessThan":"23.4R2-S8","versionType":"custom"},{"version":"24.2","status":"affected","lessThan":"24.2R2-S4","versionType":"custom"},{"version":"24.4","status":"affected","lessThan":"24.4R2-S3","versionType":"custom"},{"version":"25.2","status":"affected","lessThan":"25.2R2","versionType":"custom"},{"version":"25.4","status":"affected","lessThan":"25.4R1-S1","versionType":"custom"}],"platforms":["EX4100","EX4300-MP (Multigigabit)","EX2300","EX4400","EX4000"]}],"references":["https://supportportal.juniper.net/JSA110077"],"weaknesses":["CWE-862"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/33xxx/CVE-2026-33802.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-33802","state":"PUBLISHED","datePublished":"2026-07-09T21:03:48.353Z","dateUpdated":"2026-07-10T13:28:31.126Z","assignerShortName":"juniper","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateReserved":"2026-03-23T19:46:13.673Z"},"containers":{"cna":{"title":"Junos OS: EX Series: Unauthorized users can execute service-impacting CLI command","descriptions":[{"lang":"en","value":"A Missing Authorization vulnerability in the CLI of Juniper Networks Junos OS on EX Series allows a local, authenticated attacker to cause a Denial-of-Service (DoS).\n\n\n\nOn EX2300, EX4000, EX4100, EX4300-MP (Multigigabit) and EX4400 switches, an authenticated, local attacker with no specific permissions or class can execute a specific, privileged CLI 'request' command which will cause complete traffic impact until the system automatically recovers.\n\nThis issue affects Junos OS on EX2300, EX4000, EX4100, EX4300-MP (Multigigabit) and EX4400:\n\n\n  *  23.2R2 versions before 23.2R2-S6,\n  *  23.4 versions before 23.4R2-S8,\n  *  24.2 versions before 24.2R2-S4,\n  *  24.4 versions before 24.4R2-S3,\n  *  25.2 versions before 25.2R2,\n  *  25.4 versions before 25.4R1-S1."}],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","defaultStatus":"unaffected","versions":[{"version":"23.2R2","status":"affected","lessThan":"23.2R2-S6","versionType":"custom"},{"version":"23.4","status":"affected","lessThan":"23.4R2-S8","versionType":"custom"},{"version":"24.2","status":"affected","lessThan":"24.2R2-S4","versionType":"custom"},{"version":"24.4","status":"affected","lessThan":"24.4R2-S3","versionType":"custom"},{"version":"25.2","status":"affected","lessThan":"25.2R2","versionType":"custom"},{"version":"25.4","status":"affected","lessThan":"25.4R1-S1","versionType":"custom"}],"platforms":["EX4100","EX4300-MP (Multigigabit)","EX2300","EX4400","EX4000"]}],"references":[{"url":"https://supportportal.juniper.net/JSA110077","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-862","description":"CWE-862 Missing Authorization","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"juniper","orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateUpdated":"2026-07-09T21:03:48.353Z"},"datePublic":"2026-07-08T16:00:00.000Z","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:\n\nJunos OS: 23.2R2-S6, 23.4R2-S8, 24.2R2-S4, 24.4R2-S3, 25.2R2, 25.4R1-S1, 25.4R2, 26.2R1, and all subsequent releases."}],"value":"The following software releases have been updated to resolve this specific issue:\n\nJunos OS: 23.2R2-S6, 23.4R2-S8, 24.2R2-S4, 24.4R2-S3, 25.2R2, 25.4R1-S1, 25.4R2, 26.2R1, and all subsequent releases."}],"source":{"advisory":"JSA110077","defect":["1921391"],"discovery":"USER"},"workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"There are no known workarounds for this issue.<br>To reduce the risk of exploitation use command authorization to limit access to 'request' commands.<br>"}],"value":"There are no known workarounds for this issue.\nTo reduce the risk of exploitation use command authorization to limit access to 'request' commands."}],"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-10T13:28:21.072727Z","id":"CVE-2026-33802","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-10T13:28:31.126Z"}}]}}}