CVE-2024-20377: Cisco Secure Firewall Management Center

Medium severity, CVSS 5.4. EPSS: 0.4% chance of exploitation in the next 30 days.

A vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface. This vulnerability is due to the web-based management interface not properly validating user-supplied input. An attacker could exploit this vulnerability by by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.

Affected products

• Cisco Secure Firewall Management Center: version 7.0.0 only; version 7.0.0.1 only; version 7.0.1 only; version 7.0.1.1 only; version 7.0.2 only; version 7.0.2.1 only; …

Published 2024-10-23. Last modified 2026-06-17.