{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-33791", "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "state": "PUBLISHED", "assignerShortName": "juniper", "dateReserved": "2026-03-23T19:46:13.672Z", "datePublished": "2026-04-09T21:38:52.747Z", "dateUpdated": "2026-04-09T21:38:52.747Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Junos OS", "vendor": "Juniper Networks", "versions": [{"lessThan": "22.4R3-S8", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThan": "23.2R2-S5", "status": "affected", "version": "23.2", "versionType": "semver"}, {"lessThan": "23.4R2-S7", "status": "affected", "version": "23.4", "versionType": "semver"}, {"lessThan": "24.2R2-S2", "status": "affected", "version": "24.2", "versionType": "semver"}, {"lessThan": "24.4R2", "status": "affected", "version": "24.4", "versionType": "semver"}, {"lessThan": "25.2R2", "status": "affected", "version": "25.2", "versionType": "semver"}]}, {"defaultStatus": "unaffected", "product": "Junos OS Evolved", "vendor": "Juniper Networks", "versions": [{"lessThan": "22.4R3-S8-EVO", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThan": "23.2R2-S5-EVO", "status": "affected", "version": "23.2", "versionType": "semver"}, {"lessThan": "23.4R2-S7-EVO", "status": "affected", "version": "23.4", "versionType": "semver"}, {"lessThan": "24.2R2-S2-EVO", "status": "affected", "version": "24.2", "versionType": "semver"}, {"lessThan": "24.4R2-EVO", "status": "affected", "version": "24.4", "versionType": "semver"}, {"lessThan": "25.2R1-S1-EVO, 25.2R2-EVO", "status": "affected", "version": "25.2", "versionType": "semver"}]}], "datePublic": "2026-04-08T16:00:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "An OS Command Injection vulnerability in the CLI processing of Juniper Networks Junos OS and Junos OS Evolved allows a local, high-privileged attacker executing specific, crafted CLI commands to inject arbitrary shell commands as root, leading to a complete compromise of the system.<br><br>Certain 'set system' commands, when executed with crafted arguments, are not properly sanitized, allowing for arbitrary shell injection. These shell commands are executed as root, potentially allowing for complete control of the vulnerable system.<br><p>This issue affects:</p><p>Junos OS:&nbsp;</p><p></p><ul><li>all versions before 22.4R3-S8,&nbsp;</li><li>from 23.2 before 23.2R2-S5,&nbsp;</li><li>from 23.4 before 23.4R2-S7,&nbsp;</li><li>from 24.2 before 24.2R2-S2,&nbsp;</li><li>from 24.4 before 24.4R2,&nbsp;</li><li>from 25.2 before 25.2R2;&nbsp;</li></ul><p></p><p>Junos OS Evolved:&nbsp;</p><p></p><ul><li>all versions before 22.4R3-S8-EVO,&nbsp;</li><li>from 23.2 before 23.2R2-S5-EVO,&nbsp;</li><li>from 23.4 before 23.4R2-S7-EVO,&nbsp;</li><li>from 24.2 before 24.2R2-S2-EVO,&nbsp;</li><li>from 24.4 before 24.4R2-EVO,&nbsp;</li><li>from 25.2 before 25.2R1-S1-EVO, 25.2R2-EVO.</li></ul><p></p>"}], "value": "An OS Command Injection vulnerability in the CLI processing of Juniper Networks Junos OS and Junos OS Evolved allows a local, high-privileged attacker executing specific, crafted CLI commands to inject arbitrary shell commands as root, leading to a complete compromise of the system.\n\nCertain 'set system' commands, when executed with crafted arguments, are not properly sanitized, allowing for arbitrary shell injection. These shell commands are executed as root, potentially allowing for complete control of the vulnerable system.\nThis issue affects:\n\nJunos OS:\u00a0\n\n\n\n * all versions before 22.4R3-S8,\u00a0\n * from 23.2 before 23.2R2-S5,\u00a0\n * from 23.4 before 23.4R2-S7,\u00a0\n * from 24.2 before 24.2R2-S2,\u00a0\n * from 24.4 before 24.4R2,\u00a0\n * from 25.2 before 25.2R2;\u00a0\n\n\n\n\nJunos OS Evolved:\u00a0\n\n\n\n * all versions before 22.4R3-S8-EVO,\u00a0\n * from 23.2 before 23.2R2-S5-EVO,\u00a0\n * from 23.4 before 23.4R2-S7-EVO,\u00a0\n * from 24.2 before 24.2R2-S2-EVO,\u00a0\n * from 24.4 before 24.4R2-EVO,\u00a0\n * from 25.2 before 25.2R1-S1-EVO, 25.2R2-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": 6.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/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": 8.4, "baseSeverity": "HIGH", "privilegesRequired": "HIGH", "providerUrgency": "AMBER", "subAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "CONCENTRATED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/V:C/RE:M/U:Amber", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "MODERATE"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-78", "description": "CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "shortName": "juniper", "dateUpdated": "2026-04-09T21:38:52.747Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://kb.juniper.net/JSA107875"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "The following software releases have been updated to resolve this specific issue: <br>Junos OS 22.4R3-S8, 23.2R2-S5, 23.4R2-S7, 24.2R2-S2, 24.4R2, 25.2R2, 25.4R1<span style=\"background-color: rgb(255, 255, 255);\">, and all subsequent releases.</span>\n\n<br>\n\n<span style=\"background-color: rgb(255, 255, 255);\">Junos OS Evolved 22.4R3-S8-EVO, 23.2R2-S5-EVO, 23.4R2-S7-EVO, 24.2R2-S2-EVO, 24.4R2-EVO, 25.2R1-S1-EVO, 25.2R2-EVO, 25.4R1-EVO<span style=\"background-color: rgb(255, 255, 255);\">, and all subsequent releases.</span>\n\n</span><br>"}], "value": "The following software releases have been updated to resolve this specific issue: \nJunos OS 22.4R3-S8, 23.2R2-S5, 23.4R2-S7, 24.2R2-S2, 24.4R2, 25.2R2, 25.4R1, and all subsequent releases.\n\n\n\n\nJunos OS Evolved 22.4R3-S8-EVO, 23.2R2-S5-EVO, 23.4R2-S7-EVO, 24.2R2-S2-EVO, 24.4R2-EVO, 25.2R1-S1-EVO, 25.2R2-EVO, 25.4R1-EVO, and all subsequent releases."}], "source": {"advisory": "JSA107875", "defect": ["1872082"], "discovery": "INTERNAL"}, "title": "Junos OS and Junos OS Evolved: Execution of crafted CLI commands allows for arbitrary shell injection as root", "workarounds": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "One of the following mitigations will reduce the risk of malicious exploitation:<br><ul><li>Use access lists or firewall filters to limit access to the CLI only from trusted hosts and administrators.</li><li>Avoid configuring access to any part of the '<tt>set system</tt>'\u200b stanza for non-privileged users.</li></ul>"}], "value": "One of the following mitigations will reduce the risk of malicious exploitation:\n * Use access lists or firewall filters to limit access to the CLI only from trusted hosts and administrators.\n * Avoid configuring access to any part of the 'set system'\u200b stanza for non-privileged users."}], "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "An OS Command Injection vulnerability in the CLI processing of Juniper Networks Junos OS and Junos OS Evolved allows a local, high-privileged attacker executing specific, crafted CLI commands to inject arbitrary shell commands as root, leading to a complete compromise of the system.\n\nCertain 'set system' commands, when executed with crafted arguments, are not properly sanitized, allowing for arbitrary shell injection. These shell commands are executed as root, potentially allowing for complete control of the vulnerable system.\nThis issue affects:\n\nJunos OS:\u00a0\n\n\n\n * all versions before 22.4R3-S8,\u00a0\n * from 23.2 before 23.2R2-S5,\u00a0\n * from 23.4 before 23.4R2-S7,\u00a0\n * from 24.2 before 24.2R2-S2,\u00a0\n * from 24.4 before 24.4R2,\u00a0\n * from 25.2 before 25.2R2;\u00a0\n\n\n\n\nJunos OS Evolved:\u00a0\n\n\n\n * all versions before 22.4R3-S8-EVO,\u00a0\n * from 23.2 before 23.2R2-S5-EVO,\u00a0\n * from 23.4 before 23.4R2-S7-EVO,\u00a0\n * from 24.2 before 24.2R2-S2-EVO,\u00a0\n * from 24.4 before 24.4R2-EVO,\u00a0\n * from 25.2 before 25.2R1-S1-EVO, 25.2R2-EVO."}], "id": "CVE-2026-33791", "lastModified": "2026-04-09T22:16:29.047", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 5.9, "source": "sirt@juniper.net", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "YES", "Recovery": "AUTOMATIC", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.4, "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": "HIGH", "providerUrgency": "AMBER", "subAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "CONCENTRATED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:H/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:Y/R:A/V:C/RE:M/U:Amber", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "MODERATE"}, "source": "sirt@juniper.net", "type": "Secondary"}]}, "published": "2026-04-09T22:16:29.047", "references": [{"source": "sirt@juniper.net", "url": "https://kb.juniper.net/JSA107875"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-78"}], "source": "sirt@juniper.net", "type": "Primary"}]}

{}

{}