CVE-2026-20181
CriticalCVSS 9.1Exploitation Probability (EPSS)
Low risk43th percentile — higher than 43% of all known CVEs
Summary
A vulnerability in Cisco ISE and ISE-PIC allows an authenticated, remote attacker to execute arbitrary commands on the underlying operating system of an affected device. This requires valid administrative credentials and sending a crafted HTTP request.
Risk Assessment
The risk to the organization includes the potential for gaining access to the operating system and elevating privileges to root, which could lead to the ISE node becoming unavailable and a denial of service (DoS) condition.
Recommendation
Organizations are advised to update their Cisco ISE and ISE-PIC systems to the latest version and implement additional security measures to restrict device access to authorized users only.
Original NVD description (English source)
A vulnerability in Cisco ISE and ISE-PIC 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 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 user-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 denial of service (DoS) condition. In that condition, endpoints that have not already authenticated would be unable to access the network until the node is restored.