What’s Vulnerable › Vulnerabilities
CVE-2026-76432: Cisco Identity Services Engine Arbitrary File Write Vulnerability
- Severity: medium (CVSS 4.9 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-16 · updated 2026-09-28
- Weakness: CWE-22
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.
Affected products
- Cisco Identity Services Engine: from 3.1.0 before 3.3.0; 3.3.0-patch1, 3.3.0-patch10, 3.3.0-patch11, 3.3.0-patch2, 3.3.0-patch3, 3.3.0-patch4 (+16) — fixed in 3.3.0
- Cisco Identity Services Engine Passive Identity Connector: from 3.1.0 before 3.3.0; 3.3.0-patch1, 3.3.0-patch10, 3.3.0-patch11, 3.3.0-patch2, 3.3.0-patch3, 3.3.0-patch4 (+12) — fixed in 3.3.0
How to fix
Upgrade to a fixed version: Cisco Identity Services Engine 3.3.0; Cisco Identity Services Engine Passive Identity Connector 3.3.0. Check the vendor advisory for mitigations.
References
Get alerted when CVE-2026-76432 or the next vulnerability affects your stack