CVE-2020-3302: Cisco Secure Firewall Management Center

High severity, CVSS 8.1. EPSS: 1.7% chance of exploitation in the next 30 days.

A vulnerability in the web UI of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to overwrite files on the file system of an affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by uploading a crafted file to the web UI on an affected device. A successful exploit could allow the attacker to overwrite files on the file system of the affected device.

Affected products

• Cisco Secure Firewall Management Center: before 6.2.2.2 (fixed in 6.2.2.2)

Published 2020-05-06. Last modified 2026-06-17.