CVE-2022-20740: Cisco Secure Firewall Management Center

Medium severity, CVSS 6.1. EPSS: 0.8% chance of exploitation in the next 30 days.

A vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting attack. This vulnerability is due to improper validation of user-supplied input to the web-based management interface. An attacker could exploit this vulnerability by convincing a user to click a link designed to pass malicious input to the interface. A successful exploit could allow the attacker to conduct cross-site scripting attacks and gain access to sensitive browser-based information.

Affected products

• Cisco Secure Firewall Management Center: before 6.6.5.2 (fixed in 6.6.5.2); from 6.7.0, before 7.0.2 (fixed in 7.0.2); from 7.1.0, before 7.1.0.1 (fixed in 7.1.0.1)

Published 2022-05-03. Last modified 2026-06-17.