{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-33793", "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "state": "PUBLISHED", "assignerShortName": "juniper", "dateReserved": "2026-03-23T19:46:13.672Z", "datePublished": "2026-04-09T21:24:50.485Z", "dateUpdated": "2026-04-09T21:24:50.485Z"}, "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.<br><tt><br></tt><tt>&nbsp;[ system scripts language python3]<br></tt><br>Starting in Junos OS Evolved Release 21.2R1, the <tt>junos-defaults</tt> configuration group includes the language python statement by default.<br><br>"}], "value": "This issue only affects systems when remote Python3 op scripts are enabled.\n\n\u00a0[ 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&nbsp;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.<br><br>When a&nbsp;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.&nbsp;<br><br>This issue affects Junos OS:&nbsp;<p></p><ul><li>All versions before 22.4R3-S7,&nbsp;</li><li>from 23.2 before 23.2R2-S4,&nbsp;</li><li>from 23.4 before&nbsp;23.4R2-S6,</li><li>from 24.2 before 24.2R1-S2, 24.2R2,&nbsp;</li><li>from 24.4 before 24.4R1-S2, 24.4R2;&nbsp;</li></ul><p></p><p>Junos OS Evolved:&nbsp;</p><p></p><ul><li>All versions before 22.4R3-S7-EVO,&nbsp;</li><li>from 23.2 before 23.2R2-S4-EVO,&nbsp;</li><li>from 23.4 before&nbsp;23.4R2-S6-EVO,</li><li>from 24.2 before 24.2R2-EVO,&nbsp;</li><li>from 24.4 before 24.4R1-S1-EVO, 24.4R2-EVO.</li></ul>"}], "value": "An Execution with Unnecessary Privileges vulnerability\u00a0in 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\u00a0configuration 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.\u00a0\n\nThis issue affects Junos OS:\u00a0\n\n * All versions before 22.4R3-S7,\u00a0\n * from 23.2 before 23.2R2-S4,\u00a0\n * from 23.4 before\u00a023.4R2-S6,\n * from 24.2 before 24.2R1-S2, 24.2R2,\u00a0\n * from 24.4 before 24.4R1-S2, 24.4R2;\u00a0\n\n\n\n\nJunos OS Evolved:\u00a0\n\n\n\n * All versions before 22.4R3-S7-EVO,\u00a0\n * from 23.2 before 23.2R2-S4-EVO,\u00a0\n * from 23.4 before\u00a023.4R2-S6-EVO,\n * from 24.2 before 24.2R2-EVO,\u00a0\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": {"orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "shortName": "juniper", "dateUpdated": "2026-04-09T21:24:50.485Z"}, "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: <br><br>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.<br><br>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.<br><br><br>"}], "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.<br>"}], "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"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "An Execution with Unnecessary Privileges vulnerability\u00a0in 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\u00a0configuration 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.\u00a0\n\nThis issue affects Junos OS:\u00a0\n\n * All versions before 22.4R3-S7,\u00a0\n * from 23.2 before 23.2R2-S4,\u00a0\n * from 23.4 before\u00a023.4R2-S6,\n * from 24.2 before 24.2R1-S2, 24.2R2,\u00a0\n * from 24.4 before 24.4R1-S2, 24.4R2;\u00a0\n\n\n\n\nJunos OS Evolved:\u00a0\n\n\n\n * All versions before 22.4R3-S7-EVO,\u00a0\n * from 23.2 before 23.2R2-S4-EVO,\u00a0\n * from 23.4 before\u00a023.4R2-S6-EVO,\n * from 24.2 before 24.2R2-EVO,\u00a0\n * from 24.4 before 24.4R1-S1-EVO, 24.4R2-EVO."}], "id": "CVE-2026-33793", "lastModified": "2026-04-09T22:16:29.297", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "sirt@juniper.net", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.5, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "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/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", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "sirt@juniper.net", "type": "Secondary"}]}, "published": "2026-04-09T22:16:29.297", "references": [{"source": "sirt@juniper.net", "url": "https://kb.juniper.net/JSA103142"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-250"}], "source": "sirt@juniper.net", "type": "Primary"}]}

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