{"api_version":"1","generated_at":"2026-04-11T08:44:53+00:00","cve":"CVE-2026-33793","urls":{"html":"https://cve.report/CVE-2026-33793","api":"https://cve.report/api/cve/CVE-2026-33793.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-33793","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-33793"},"summary":{"title":"Junos OS and Junos OS Evolved: When an unsigned Python op script configuration is present, a local low privileged user can compromise the system","description":"An Execution with Unnecessary Privileges vulnerability in the User Interface (UI) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privileged attacker to gain root privileges, thus compromising the system.\n\nWhen a configuration that allows unsigned Python op scripts is present on the device, a non-root user is able to execute malicious op scripts as a root-equivalent user, leading to privilege escalation. \n\nThis issue affects Junos OS: \n\n * All versions before 22.4R3-S7, \n * from 23.2 before 23.2R2-S4, \n * from 23.4 before 23.4R2-S6,\n * from 24.2 before 24.2R1-S2, 24.2R2, \n * from 24.4 before 24.4R1-S2, 24.4R2; \n\n\n\n\nJunos OS Evolved: \n\n\n\n * All versions before 22.4R3-S7-EVO, \n * from 23.2 before 23.2R2-S4-EVO, \n * from 23.4 before 23.4R2-S6-EVO,\n * from 24.2 before 24.2R2-EVO, \n * from 24.4 before 24.4R1-S1-EVO, 24.4R2-EVO.","state":"PUBLISHED","assigner":"juniper","published_at":"2026-04-09 22:16:29","updated_at":"2026-04-09 22:16:29"},"problem_types":["CWE-250","CWE-250 CWE-250: Execution with Unnecessary Privileges"],"metrics":[{"version":"4.0","source":"sirt@juniper.net","type":"Secondary","score":"8.5","severity":"HIGH","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","data":{"version":"4.0","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","baseScore":8.5,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"LOW","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}},{"version":"4.0","source":"CNA","type":"CVSS","score":"8.5","severity":"HIGH","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:L","data":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":8.5,"baseSeverity":"HIGH","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:H/VI:H/VA:H/SC:N/SI:N/SA:L","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"}},{"version":"3.1","source":"sirt@juniper.net","type":"Primary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://kb.juniper.net/JSA103142","name":"https://kb.juniper.net/JSA103142","refsource":"sirt@juniper.net","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-33793","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33793","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Juniper Networks","product":"Junos OS","version":"affected 22.4R3-S7 semver","platforms":[]},{"source":"CNA","vendor":"Juniper Networks","product":"Junos OS","version":"affected 23.2 23.2R2-S4 semver","platforms":[]},{"source":"CNA","vendor":"Juniper Networks","product":"Junos OS","version":"affected 23.4 23.4R2-S6 semver","platforms":[]},{"source":"CNA","vendor":"Juniper Networks","product":"Junos OS","version":"affected 24.2 24.2R1-S2, 24.2R2 semver","platforms":[]},{"source":"CNA","vendor":"Juniper Networks","product":"Junos OS","version":"affected 24.4 24.4R1-S2, 24.4R2 semver","platforms":[]},{"source":"CNA","vendor":"Juniper Networks","product":"Junos OS Evolved","version":"affected 22.4R3-S7-EVO semver","platforms":[]},{"source":"CNA","vendor":"Juniper Networks","product":"Junos OS Evolved","version":"affected 23.2 23.2R2-S4-EVO semver","platforms":[]},{"source":"CNA","vendor":"Juniper Networks","product":"Junos OS Evolved","version":"affected 23.4 23.4R2-S6-EVO semver","platforms":[]},{"source":"CNA","vendor":"Juniper Networks","product":"Junos OS Evolved","version":"affected 24.2 24.2R2-EVO semver","platforms":[]},{"source":"CNA","vendor":"Juniper Networks","product":"Junos OS Evolved","version":"affected 24.4 24.4R1-S1-EVO, 24.4R2-EVO semver","platforms":[]}],"timeline":[],"solutions":[{"source":"CNA","title":"","value":"The following software releases have been updated to resolve this specific issue: \n\nJunos OS Evolved: 22.4R3-S7-EVO, 23.2R2-S4-EVO, 23.4R2-S6-EVO, 24.2R2-EVO, 24.4R1-S1-EVO, 24.4R2-EVO, 25.2R1-EVO and all subsequent releases.\n\nJunos OS: 22.4R3-S7, 23.2R2-S4, 23.4R2-S6, 24.2R1-S2, 24.2R2, 24.4R1-S2, 24.4R2, 25.2R1 and all subsequent releases.","time":"","lang":"en"}],"workarounds":[{"source":"CNA","title":"","value":"Use access lists or firewall filters to limit access to the CLI only from trusted hosts and administrators.","time":"","lang":"en"}],"exploits":[{"source":"CNA","title":"","value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability.","time":"","lang":"en"}],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"33793","cve":"CVE-2026-33793","epss":"0.000140000","percentile":"0.023930000","score_date":"2026-04-10","updated_at":"2026-04-11 00:00:34"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Junos OS","vendor":"Juniper Networks","versions":[{"lessThan":"22.4R3-S7","status":"affected","version":"0","versionType":"semver"},{"lessThan":"23.2R2-S4","status":"affected","version":"23.2","versionType":"semver"},{"lessThan":"23.4R2-S6","status":"affected","version":"23.4","versionType":"semver"},{"lessThan":"24.2R1-S2, 24.2R2","status":"affected","version":"24.2","versionType":"semver"},{"lessThan":"24.4R1-S2, 24.4R2","status":"affected","version":"24.4","versionType":"semver"}]},{"defaultStatus":"unaffected","product":"Junos OS Evolved","vendor":"Juniper Networks","versions":[{"lessThan":"22.4R3-S7-EVO","status":"affected","version":"0","versionType":"semver"},{"lessThan":"23.2R2-S4-EVO","status":"affected","version":"23.2","versionType":"semver"},{"lessThan":"23.4R2-S6-EVO","status":"affected","version":"23.4","versionType":"semver"},{"lessThan":"24.2R2-EVO","status":"affected","version":"24.2","versionType":"semver"},{"lessThan":"24.4R1-S1-EVO, 24.4R2-EVO","status":"affected","version":"24.4","versionType":"semver"}]}],"configurations":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"This issue only affects systems when remote Python3 op scripts are enabled. [ system scripts language python3]
Starting in Junos OS Evolved Release 21.2R1, the junos-defaults configuration group includes the language python statement by default.
"}],"value":"This issue only affects systems when remote Python3 op scripts are enabled.\n\n [ system scripts language python3]\n\nStarting in Junos OS Evolved Release 21.2R1, the junos-defaults configuration group includes the language python statement by default."}],"datePublic":"2026-04-08T16:00:00.000Z","descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"An Execution with Unnecessary Privileges vulnerability in the User Interface (UI) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privileged attacker to gain root privileges, thus compromising the system.
When a configuration that allows unsigned Python op scripts is present on the device, a non-root user is able to execute malicious op scripts as a root-equivalent user, leading to privilege escalation.
This issue affects Junos OS:
All versions before 22.4R3-S7,
from 23.2 before 23.2R2-S4,
from 23.4 before 23.4R2-S6,
from 24.2 before 24.2R1-S2, 24.2R2,
from 24.4 before 24.4R1-S2, 24.4R2;
Junos OS Evolved:
All versions before 22.4R3-S7-EVO,
from 23.2 before 23.2R2-S4-EVO,
from 23.4 before 23.4R2-S6-EVO,
from 24.2 before 24.2R2-EVO,
from 24.4 before 24.4R1-S1-EVO, 24.4R2-EVO.
"}],"value":"An Execution with Unnecessary Privileges vulnerability in the User Interface (UI) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privileged attacker to gain root privileges, thus compromising the system.\n\nWhen a configuration that allows unsigned Python op scripts is present on the device, a non-root user is able to execute malicious op scripts as a root-equivalent user, leading to privilege escalation. \n\nThis issue affects Junos OS: \n\n * All versions before 22.4R3-S7, \n * from 23.2 before 23.2R2-S4, \n * from 23.4 before 23.4R2-S6,\n * from 24.2 before 24.2R1-S2, 24.2R2, \n * from 24.4 before 24.4R1-S2, 24.4R2; \n\n\n\n\nJunos OS Evolved: \n\n\n\n * All versions before 22.4R3-S7-EVO, \n * from 23.2 before 23.2R2-S4-EVO, \n * from 23.4 before 23.4R2-S6-EVO,\n * from 24.2 before 24.2R2-EVO, \n * from 24.4 before 24.4R1-S1-EVO, 24.4R2-EVO."}],"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."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]},{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":8.5,"baseSeverity":"HIGH","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:H/VI:H/VA:H/SC:N/SI:N/SA:L","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-250","description":"CWE-250: Execution with Unnecessary Privileges","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-04-09T21:24:50.485Z","orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","shortName":"juniper"},"references":[{"tags":["vendor-advisory"],"url":"https://kb.juniper.net/JSA103142"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"The following software releases have been updated to resolve this specific issue:
Junos OS Evolved: 22.4R3-S7-EVO, 23.2R2-S4-EVO, 23.4R2-S6-EVO, 24.2R2-EVO, 24.4R1-S1-EVO, 24.4R2-EVO, 25.2R1-EVO and all subsequent releases.
Junos OS: 22.4R3-S7, 23.2R2-S4, 23.4R2-S6, 24.2R1-S2, 24.2R2, 24.4R1-S2, 24.4R2, 25.2R1 and all subsequent releases.
"}],"value":"The following software releases have been updated to resolve this specific issue: \n\nJunos OS Evolved: 22.4R3-S7-EVO, 23.2R2-S4-EVO, 23.4R2-S6-EVO, 24.2R2-EVO, 24.4R1-S1-EVO, 24.4R2-EVO, 25.2R1-EVO and all subsequent releases.\n\nJunos OS: 22.4R3-S7, 23.2R2-S4, 23.4R2-S6, 24.2R1-S2, 24.2R2, 24.4R1-S2, 24.4R2, 25.2R1 and all subsequent releases."}],"source":{"advisory":"JSA103142","defect":["1842247"],"discovery":"INTERNAL"},"title":"Junos OS and Junos OS Evolved: When an unsigned Python op script configuration is present, a local low privileged user can compromise the system","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. "}],"value":"Use access lists or firewall filters to limit access to the CLI only from trusted hosts and administrators."}],"x_generator":{"engine":"Vulnogram 0.1.0-dev"}}},"cveMetadata":{"assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","assignerShortName":"juniper","cveId":"CVE-2026-33793","datePublished":"2026-04-09T21:24:50.485Z","dateReserved":"2026-03-23T19:46:13.672Z","dateUpdated":"2026-04-09T21:24:50.485Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-04-09 22:16:29","lastModifiedDate":"2026-04-09 22:16:29","problem_types":["CWE-250","CWE-250 CWE-250: Execution with Unnecessary Privileges"],"metrics":{"cvssMetricV40":[{"source":"sirt@juniper.net","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","baseScore":8.5,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"LOW","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"sirt@juniper.net","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"33793","Ordinal":"1","Title":"Junos OS and Junos OS Evolved: When an unsigned Python op script","CVE":"CVE-2026-33793","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"33793","Ordinal":"1","NoteData":"An Execution with Unnecessary Privileges vulnerability in the User Interface (UI) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privileged attacker to gain root privileges, thus compromising the system.\n\nWhen a configuration that allows unsigned Python op scripts is present on the device, a non-root user is able to execute malicious op scripts as a root-equivalent user, leading to privilege escalation. \n\nThis issue affects Junos OS: \n\n * All versions before 22.4R3-S7, \n * from 23.2 before 23.2R2-S4, \n * from 23.4 before 23.4R2-S6,\n * from 24.2 before 24.2R1-S2, 24.2R2, \n * from 24.4 before 24.4R1-S2, 24.4R2; \n\n\n\n\nJunos OS Evolved: \n\n\n\n * All versions before 22.4R3-S7-EVO, \n * from 23.2 before 23.2R2-S4-EVO, \n * from 23.4 before 23.4R2-S6-EVO,\n * from 24.2 before 24.2R2-EVO, \n * from 24.4 before 24.4R1-S1-EVO, 24.4R2-EVO.","Type":"Description","Title":"Junos OS and Junos OS Evolved: When an unsigned Python op script"}]}}}