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CVE-2026-20193

Full vulnerability record from the local CVENow database.

Description

A vulnerability in the RADIUS Policy API endpoints of Cisco ISE could allow an authenticated, remote attacker with read-only Administrator privileges to gain unauthorized access to sensitive information on an affected device. This vulnerability is due to improper role-based access control (RBAC) permissions on the RADIUS Policy API endpoints. An attacker could exploit this vulnerability by bypassing the web-based management interface and directly calling an affected endpoint. A successful exploit could allow the attacker to gain unauthorized read access to sensitive RADIUS Policy details that are restricted for their role.

Severity
MEDIUM
CVSS score
4.3 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-05-06 17:16:21.500000
Last modified
2026-10-26 19:10:00.163000
View original CVE JSON
{
  "id": "CVE-2026-20193",
  "sourceIdentifier": "[email protected]",
  "published": "2026-05-06T17:16:21.500",
  "lastModified": "2026-10-26T19:10:00.163",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the RADIUS Policy API endpoints of Cisco ISE could allow an authenticated, remote attacker with read-only Administrator privileges to gain unauthorized access to sensitive information on an affected device.\r\n\r\nThis vulnerability is due to improper role-based access control (RBAC) permissions on the RADIUS Policy API endpoints. An attacker could exploit this vulnerability by bypassing the web-based management interface and directly calling an affected endpoint. A successful exploit could allow the attacker to gain unauthorized read access to sensitive RADIUS Policy details that are restricted for their role."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en los endpoints de la API de políticas RADIUS de Cisco ISE podría permitir a un atacante remoto autenticado con privilegios de Administrador de solo lectura obtener acceso no autorizado a información sensible en un dispositivo afectado.\n\nEsta vulnerabilidad se debe a permisos de control de acceso basado en roles (RBAC) inadecuados en los endpoints de la API de políticas RADIUS. Un atacante podría explotar esta vulnerabilidad eludiendo la interfaz de gestión basada en web y llamando directamente a un endpoint afectado. Un exploit exitoso podría permitir al atacante obtener acceso de lectura no autorizado a detalles sensibles de la política RADIUS que están restringidos para su rol."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
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          "product": "Cisco Identity Services Engine Software",
          "defaultStatus": "unknown",
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  "metrics": {
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          "baseScore": 4.3,
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          "attackVector": "NETWORK",
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          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
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    "ssvcV203": [
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          "role": "CISA Coordinator",
          "version": "2.0.3"
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  "weaknesses": [
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      "source": "[email protected]",
      "type": "Secondary",
      "description": [
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  "references": [
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      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-unauth-bypass-uxjRXGpb",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
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}