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CVE PROGRAM SOURCE RECORD9.1 Critical

CVE-2026-20176

Cisco Identity Services Engine Remote Code Execution Vulnerability

Description

A vulnerability in Cisco ISE could allow an authenticated, remote attacker to execute arbitrary commands on the underlying operating system of an affected device. To exploit this vulnerability, the attacker must have valid high-privileged administrative credentials. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to obtain system-level access to the underlying operating system and then elevate privileges to root. In single-node deployments, successful exploitation of this vulnerability could cause the affected ISE node to become unavailable, resulting in a DoS condition. In that condition, endpoints that have not already authenticated would be unable to access the network until the node is restored.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Cisco Cisco Identity Services Engine Software

Default version status: unknown

  • 3.1.0affected
  • 3.1.0 p1affected
  • 3.1.0 p3affected
  • 3.1.0 p2affected
  • 3.2.0affected
  • 3.1.0 p4affected
  • 3.1.0 p5affected
  • 3.2.0 p1affected
  • 3.1.0 p6affected
  • 3.2.0 p2affected
  • 3.1.0 p7affected
  • 3.3.0affected
  • 3.2.0 p3affected
  • 3.2.0 p4affected
  • 3.1.0 p8affected
  • 3.2.0 p5affected
  • 3.2.0 p6affected
  • 3.1.0 p9affected
  • 3.3 Patch 2affected
  • 3.3 Patch 1affected
  • 3.3 Patch 3affected
  • 3.4.0affected
  • 3.2.0 p7affected
  • 3.3 Patch 4affected
  • 3.4 Patch 1affected
  • 3.1.0 p10affected
  • 3.3 Patch 5affected
  • 3.3 Patch 6affected
  • 3.4 Patch 2affected
  • 3.3 Patch 7affected
  • 3.4 Patch 3affected
  • 3.5.0affected
  • 3.4 Patch 4affected
  • 3.3 Patch 8affected
  • 3.2 Patch 8affected
  • 3.5 Patch 1affected
  • 3.3 Patch 9affected
  • 3.2 Patch 9affected
  • 3.4 Patch 5affected
  • 3.5 Patch 3affected
  • 3.5 Patch 2affected
  • 3.3 Patch 10affected
  • 3.3 Patch 11affected
  • 3.4 Patch 6affected
  • 3.2 Patch 10affected
  • 3.1.0 p72affected
  • 3.1.0 p11affected

References