CVE-2020-3302: Cisco Firepower Management Center File Overwrite Vulnerability

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-05-06 · updated 2026-06-17
Weakness: CWE-20

Description

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 Firepower Management Center: before 6.2.2.2 — fixed in 6.2.2.2

How to fix

Upgrade to a fixed version: Cisco Firepower Management Center 6.2.2.2. Check the vendor advisory for mitigations.

References

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