CVE-2026-20285
Full vulnerability record from the local CVENow database.
Description
A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an authenticated, remote attacker to modify parts of the configuration on an affected device. This vulnerability is due to the lack of server-side validation of Administrator permissions. An attacker could exploit this vulnerability by submitting a crafted HTTP request to an affected system. A successful exploit could allow the attacker to modify descriptions of files on a specific page. To exploit this vulnerability, an attacker would need valid Administrator credentials.
Severity
MEDIUM
CVSS score
4.3
(v3.1)
Vulnerability status
Awaiting Analysis
Source identifier
Published
2026-09-16 21:17:09.217000
Last modified
2026-11-10 23:17:21.173000
View original CVE JSON
{
"id": "CVE-2026-20285",
"sourceIdentifier": "[email protected]",
"published": "2026-09-16T21:17:09.217",
"lastModified": "2026-11-10T23:17:21.173",
"vulnStatus": "Awaiting Analysis",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an authenticated, remote attacker to modify parts of the configuration on an affected device.\r\n\r\nThis vulnerability is due to the lack of server-side validation of Administrator permissions. An attacker could exploit this vulnerability by submitting a crafted HTTP request to an affected system. A successful exploit could allow the attacker to modify descriptions of files on a specific page. To exploit this vulnerability, an attacker would need valid Administrator credentials."
}
],
"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 3",
"status": "affected"
},
{
"version": "3.5 Patch 2",
"status": "affected"
},
{
"version": "3.3 Patch 10",
"status": "affected"
},
{
"version": "3.3 Patch 11",
"status": "affected"
},
{
"version": "3.4 Patch 6",
"status": "affected"
},
{
"version": "3.2 Patch 10",
"status": "affected"
},
{
"version": "3.1.0 p11",
"status": "affected"
},
{
"version": "3.1.0 p12",
"status": "affected"
},
{
"version": "3.2 Patch 11",
"status": "affected"
}
]
},
{
"vendor": "Cisco",
"product": "Cisco ISE Passive Identity Connector",
"defaultStatus": "unknown",
"versions": [
{
"version": "3.2.0",
"status": "affected"
},
{
"version": "3.1.0",
"status": "affected"
},
{
"version": "3.3.0",
"status": "affected"
},
{
"version": "3.4.0",
"status": "affected"
},
{
"version": "3.5.0",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 2.8,
"impactScore": 1.4
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-09-18T14:36:31.335011Z",
"id": "CVE-2026-20285",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-285"
}
]
}
],
"references": [
{
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-auth-bypass-1-MxcTNgwx",
"source": "[email protected]"
}
]
}