CVE-2026-76446 Cisco Identity Services Engine External Entity Injection Vulnerability

Medium 4.9 Published 16 Sep 2026 Updated 17 Sep 2026

An authenticated remote attacker can read specific files on the underlying operating system via an XML external entity injection in Cisco ISE.

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-2026-76446?

CVE-2026-76446 is a medium-severity 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 an API of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to read specific files on the underlying operating system of an affected device. This vulnerability is due to improper restriction of XML external entity references. An attacker could exploit this vulnerability by sending a crafted request to an affected device. A successful exploit could allow the attacker to read specific files on the affected system that the underlying process has permission to access.

Weakness: CWE-611

Which versions are affected by CVE-2026-76446?

It affects 2 products.

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

How do I fix CVE-2026-76446?

No fix has been published for CVE-2026-76446 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-76446 being exploited?

There is no known exploitation of CVE-2026-76446 in the wild and no public exploit code.

All Cisco Identity Services Engine vulnerabilities

Sources

Also known as GHSA-757m-6669-crwx.