Authenticated Remote File Upload & Exec via Cisco ISE REST API
CVE-2026-76424 Published on September 16, 2026

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.

NVD

Vulnerability Analysis

CVE-2026-76424 is exploitable with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
HIGH
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

Relative Path Traversal

The software uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory. This allows attackers to traverse the file system to access files or directories that are outside of the restricted directory.


Products Associated with CVE-2026-76424

Want to know whenever a new CVE is published for Cisco Identity Services Engine Software? stack.watch will email you.

Cisco Identity Services Engine Software
 

Affected Versions

Cisco Identity Services Engine Software: