CVE-2026-20136
Full vulnerability record from the local CVENow database.
Description
A vulnerability in the CLI of Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an authenticated, local attacker with administrative privileges to perform a command injection attack on the underlying operating system and elevate privileges to root. This vulnerability is due to insufficient validation of user supplied input. An attacker could exploit this vulnerability by providing crafted input to a specific CLI command. A successful exploit could allow the attacker to elevate their privileges to root on the underlying operating system.
Severity
MEDIUM
CVSS score
6.0
(v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-04-15 17:17:02.150000
Last modified
2026-10-26 22:10:00.163000
View original CVE JSON
{
"id": "CVE-2026-20136",
"sourceIdentifier": "[email protected]",
"published": "2026-04-15T17:17:02.150",
"lastModified": "2026-10-26T22:10:00.163",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the CLI of Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an authenticated, local attacker with administrative privileges to perform a command injection attack on the underlying operating system and elevate privileges to root.\r\n\r\nThis vulnerability is due to insufficient validation of user supplied input. An attacker could exploit this vulnerability by providing crafted input to a specific CLI command. A successful exploit could allow the attacker to elevate their privileges to root on the underlying operating system."
},
{
"lang": "es",
"value": "Una vulnerabilidad en la CLI de Cisco Identity Services Engine (ISE) y Cisco ISE Passive Identity Connector (ISE-PIC) podría permitir a un atacante local autenticado con privilegios administrativos realizar un ataque de inyección de comandos en el sistema operativo subyacente y elevar privilegios a root.\n\nEsta vulnerabilidad se debe a la validación insuficiente de la entrada proporcionada por el usuario. Un atacante podría explotar esta vulnerabilidad al proporcionar una entrada manipulada a un comando CLI específico. Un exploit exitoso podría permitir al atacante elevar sus privilegios a root en el sistema operativo subyacente."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Cisco",
"product": "Cisco Identity Services Engine Software",
"defaultStatus": "unknown",
"versions": [
{
"version": "3.1.0",
"status": "affected"
},
{
"version": "3.1.0 p1",
"status": "affected"
},
{
"version": "3.1.0 p3",
"status": "affected"
},
{
"version": "3.1.0 p2",
"status": "affected"
},
{
"version": "3.2.0",
"status": "affected"
},
{
"version": "3.1.0 p4",
"status": "affected"
},
{
"version": "3.1.0 p5",
"status": "affected"
},
{
"version": "3.2.0 p1",
"status": "affected"
},
{
"version": "3.1.0 p6",
"status": "affected"
},
{
"version": "3.2.0 p2",
"status": "affected"
},
{
"version": "3.1.0 p7",
"status": "affected"
},
{
"version": "3.3.0",
"status": "affected"
},
{
"version": "3.2.0 p3",
"status": "affected"
},
{
"version": "3.2.0 p4",
"status": "affected"
},
{
"version": "3.1.0 p8",
"status": "affected"
},
{
"version": "3.2.0 p5",
"status": "affected"
},
{
"version": "3.2.0 p6",
"status": "affected"
},
{
"version": "3.1.0 p9",
"status": "affected"
},
{
"version": "3.3 Patch 2",
"status": "affected"
},
{
"version": "3.3 Patch 1",
"status": "affected"
},
{
"version": "3.3 Patch 3",
"status": "affected"
},
{
"version": "3.4.0",
"status": "affected"
},
{
"version": "3.2.0 p7",
"status": "affected"
},
{
"version": "3.3 Patch 4",
"status": "affected"
},
{
"version": "3.4 Patch 1",
"status": "affected"
},
{
"version": "3.1.0 p10",
"status": "affected"
},
{
"version": "3.3 Patch 5",
"status": "affected"
},
{
"version": "3.3 Patch 6",
"status": "affected"
},
{
"version": "3.4 Patch 2",
"status": "affected"
},
{
"version": "3.3 Patch 7",
"status": "affected"
},
{
"version": "3.4 Patch 3",
"status": "affected"
},
{
"version": "3.5.0",
"status": "affected"
},
{
"version": "3.4 Patch 4",
"status": "affected"
},
{
"version": "3.3 Patch 8",
"status": "affected"
},
{
"version": "3.2 Patch 8",
"status": "affected"
},
{
"version": "3.5 Patch 1",
"status": "affected"
},
{
"version": "3.3 Patch 9",
"status": "affected"
},
{
"version": "3.2 Patch 9",
"status": "affected"
},
{
"version": "3.4 Patch 5",
"status": "affected"
},
{
"version": "3.5 Patch 2",
"status": "affected"
},
{
"version": "3.3 Patch 10",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
"baseScore": 6.0,
"baseSeverity": "MEDIUM",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "HIGH",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 0.8,
"impactScore": 5.2
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-04-15T00:00:00+00:00",
"id": "CVE-2026-20136",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-116"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine:*:*:*:*:*:*:*:*",
"versionEndExcluding": "3.3.0",
"matchCriteriaId": "804C2F93-8ADC-454A-90DF-59F51FEF9E0A"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.3.0:-:*:*:*:*:*:*",
"matchCriteriaId": "F1B9C2C1-59A4-49A0-9B74-83CCB063E55D"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch1:*:*:*:*:*:*",
"matchCriteriaId": "DFD29A0B-0D75-4EAB-BCE0-79450EC75DD0"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch10:*:*:*:*:*:*",
"matchCriteriaId": "43F3A55D-D4FC-4D93-9513-94B64B21A2B4"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch2:*:*:*:*:*:*",
"matchCriteriaId": "E6C94CC4-CC08-4DAF-A606-FDAFC92720A9"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch3:*:*:*:*:*:*",
"matchCriteriaId": "BB069EA3-7B8C-42B5-8035-2EE5ED3F56E4"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch4:*:*:*:*:*:*",
"matchCriteriaId": "FF8B81A6-BF44-4E5F-B167-39F61DDCA026"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch5:*:*:*:*:*:*",
"matchCriteriaId": "56E0F0EC-3E66-4866-89F5-89B331F3F517"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch6:*:*:*:*:*:*",
"matchCriteriaId": "2E3E8937-2859-4A2A-91C0-05F674EF0466"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch7:*:*:*:*:*:*",
"matchCriteriaId": "D4B14684-EB9E-405B-85FA-B62E57CB292C"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch8:*:*:*:*:*:*",
"matchCriteriaId": "22B752D1-9E8F-4FB7-8EEB-F9234492372B"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch9:*:*:*:*:*:*",
"matchCriteriaId": "85A1CC7D-FE54-4AC0-B98F-972C4B1F3189"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.4.0:-:*:*:*:*:*:*",
"matchCriteriaId": "D23905E0-E525-49B1-8E5F-4EB42D186768"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch1:*:*:*:*:*:*",
"matchCriteriaId": "74509498-38EF-4345-9583-CEF5C26CA1D8"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch2:*:*:*:*:*:*",
"matchCriteriaId": "CD05FF93-7B8C-4283-9DB7-E03FE98FAADF"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch3:*:*:*:*:*:*",
"matchCriteriaId": "0F9B6A8E-E773-44A3-9266-878F0C58EB41"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch4:*:*:*:*:*:*",
"matchCriteriaId": "D3727619-E0CA-4CA9-BE35-0C732BCF1741"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch5:*:*:*:*:*:*",
"matchCriteriaId": "2CFB7565-3930-409C-B5DB-CE77E6ED7C42"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.5.0:-:*:*:*:*:*:*",
"matchCriteriaId": "2610FD35-BC4B-41B7-9C92-E6E5264FEE54"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.5.0:patch1:*:*:*:*:*:*",
"matchCriteriaId": "3FEE4377-B238-4442-9892-28CECFB2319E"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.5.0:patch2:*:*:*:*:*:*",
"matchCriteriaId": "6598563B-7E32-43FB-96A7-88C53E4CE226"
}
]
}
]
},
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:*:*:*:*:*:*:*:*",
"versionEndExcluding": "3.3.0",
"matchCriteriaId": "E7F4D769-1845-41F0-8F15-B5D8AC15DFD9"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:-:*:*:*:*:*:*",
"matchCriteriaId": "3CA3315D-8A45-43F4-A0F0-094D325F285B"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch1:*:*:*:*:*:*",
"matchCriteriaId": "B3736136-9FD8-4B12-B119-EA15201224D9"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch10:*:*:*:*:*:*",
"matchCriteriaId": "FB15AE6D-F4EF-40AD-A88E-D22612AEF2A4"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch2:*:*:*:*:*:*",
"matchCriteriaId": "654ED77E-22D3-4E76-9E6D-B1581F5982F0"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch3:*:*:*:*:*:*",
"matchCriteriaId": "A0648EE9-F042-479F-9AAB-C6B5DBC46511"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch4:*:*:*:*:*:*",
"matchCriteriaId": "83F3BA58-4F38-41C8-956F-38A2F44EECE4"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch5:*:*:*:*:*:*",
"matchCriteriaId": "6C30FA1D-91E2-48C5-B181-A88FDF668278"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch6:*:*:*:*:*:*",
"matchCriteriaId": "768215B1-80B7-40FF-8772-BA4C0B3913F5"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch7:*:*:*:*:*:*",
"matchCriteriaId": "40239DA8-43B6-466B-85B0-6D644D7027D1"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch8:*:*:*:*:*:*",
"matchCriteriaId": "9118B7ED-E678-47C3-9D17-F522D9362B2F"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch9:*:*:*:*:*:*",
"matchCriteriaId": "C2ED3257-CB9D-4FD5-A482-3648CF292128"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:-:*:*:*:*:*:*",
"matchCriteriaId": "CC0525FD-C4D7-4B48-BF35-1791391AB148"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch1:*:*:*:*:*:*",
"matchCriteriaId": "68C96F6B-51EE-4D03-9598-CBFD16DA22EF"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch2:*:*:*:*:*:*",
"matchCriteriaId": "62F25185-D19E-4EC5-8A68-7AB669B76E90"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch3:*:*:*:*:*:*",
"matchCriteriaId": "C457D2EC-FB63-49B7-A90E-CE67ED763BAE"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch4:*:*:*:*:*:*",
"matchCriteriaId": "6566330F-A048-44A1-9821-7A5844C82CEC"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch5:*:*:*:*:*:*",
"matchCriteriaId": "1154F196-2CB3-4AC2-BE00-11A8942EA999"
}
]
}
]
}
],
"references": [
{
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-cmd-inj-5WSJcYJB",
"source": "[email protected]",
"tags": [
"Vendor Advisory"
]
}
]
}