CVE-2026-76432 Cisco Identity Services Engine Arbitrary File Write Vulnerability

Medium 4.9 Published 16 Sep 2026 Updated 19 Sep 2026

Authenticated administrators can write arbitrary files via path traversal in Cisco ISE, potentially leading to code execution or privilege escalation.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-76432?

CVE-2026-76432 is a medium-severity path traversal vulnerability in Cisco Identity Services Engine, published on 16 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A vulnerability in the web-based management interface of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker with administrative-level privileges to write arbitrary files on an affected device. This vulnerability exists because the affected software does not properly validate directory traversal character sequences in a user-supplied file path during the upload process. An attacker could exploit this vulnerability by uploading a crafted file to the affected system. A successful exploit could allow the attacker to write files to an arbitrary location on the affected system.

Weakness: CWE-22

Which versions are affected by CVE-2026-76432?

It affects 2 products.

Products include Cisco Identity Services Engine, Cisco Identity Services Engine Passive Identity Connector.

How do I fix CVE-2026-76432?

No fix has been published for CVE-2026-76432 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-76432 being exploited?

There is no known exploitation of CVE-2026-76432 in the wild and no public exploit code.

All Cisco Identity Services Engine vulnerabilities

Sources

Also known as GHSA-54rv-gm32-vp3p.