CVE-2026-76424: Cisco ISE Arbitrary File Access Vulnerability
A vulnerability in the REST API of Cisco ISE could allow an authenticated, remote attacker to upload or copy arbitrary files on an affected device. This vulnerability is due to insufficient validation in file operations. An attacker could exploit this vulnerability by uploading a file with a crafted path. A successful exploit could allow the attacker to upload files to arbitrary locations and execute arbitrary commands as root on the affected device. To exploit this vulnerability, the attacker must have valid administrative credentials.
Affected Software
Event History
Frequently Asked Questions
Who can exploit this vulnerability?
An attacker must be able to reach the Cisco ISE REST API remotely and possess valid administrative credentials. The issue is therefore most relevant where administrative API credentials have been compromised or granted to untrusted users.
What access can a successful attacker obtain?
A successful attacker can upload or copy files to arbitrary locations on the affected device by using a crafted file path. This can lead to arbitrary command execution as root.
What should be prioritized while remediation is pending?
Prioritize protection and review of Cisco ISE administrative credentials, since valid administrative authentication is required for exploitation. Limit remote REST API access to trusted administrative networks where possible.