CVE-2020-3550 Cisco Firepower Management Center Software and Firepower Threat Defense Software Directory Traversal Vulnerability
An authenticated remote attacker can perform directory traversal to read or write arbitrary files on connected peer devices via the sfmgr daemon.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-3550?
CVE-2020-3550 is a high-severity path traversal vulnerability in Cisco Secure Firewall Management Center, published on 21 Oct 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability in the sfmgr daemon of Cisco Firepower Management Center (FMC) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to perform directory traversal and access directories outside the restricted path. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by using a relative path in specific sfmgr commands. An exploit could allow the attacker to read or write arbitrary files on an sftunnel-connected peer device.
Weakness: CWE-22
Which versions are affected by CVE-2020-3550?
It affects 2 products.
Products include Cisco Secure Firewall Management Center, Cisco Secure Firewall Threat Defense.
How do I fix CVE-2020-3550?
No fix has been published for CVE-2020-3550 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2020-3550 being exploited?
There is no known exploitation of CVE-2020-3550 in the wild and no public exploit code.
Other vulnerabilities in Cisco Secure Firewall Management Center
- CVE-2026-20079 Cisco Firewall Management Center Authentication Bypass Using an Alternate Path or Channel
- CVE-2026-20131 Cisco Secure Firewall Management Center (FMC) Software and Cisco Security Cloud Control (SCC) Firewall Management Deserialization of Untrusted Data
- CVE-2026-20316 Cisco Secure Firewall Management Center Use of Hard-coded Password
- CVE-2025-20265 Cisco Secure Firewall Management Center Software Radius Remote Code Execution Vulnerability
- CVE-2024-20424 Command injection in Cisco Firepower Management Center
Sources
Also known as GHSA-7ghh-24j7-vmm8.