CVE-2020-3167 Cisco FXOS and UCS Manager Software CLI Command Injection Vulnerability
Authenticated local attackers can execute arbitrary OS commands via CLI input, potentially gaining root privileges on specific Cisco UCS platforms.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-3167?
CVE-2020-3167 is a high-severity command injection vulnerability in Cisco Adaptive Security Appliance Software, published on 26 Feb 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in the CLI of Cisco FXOS Software and Cisco UCS Manager Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system (OS). The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by including crafted arguments to specific commands. A successful exploit could allow the attacker to execute arbitrary commands on the underlying OS with the privileges of the currently logged-in user for all affected platforms excluding Cisco UCS 6400 Series Fabric Interconnects. On Cisco UCS 6400 Series Fabric Interconnects, the injected commands are executed with root privileges.
Weakness: CWE-78
Which versions are affected by CVE-2020-3167?
It affects 4 products.
Products include Cisco Adaptive Security Appliance Software, Cisco Firepower Extensible Operating System, Cisco Secure Firewall Threat Defense, Cisco Ucs Manager.
How do I fix CVE-2020-3167?
No fix has been published for CVE-2020-3167 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2020-3167 being exploited?
There is no known exploitation of CVE-2020-3167 in the wild and no public exploit code.
Other vulnerabilities in Cisco Adaptive Security Appliance Software
- CVE-2025-20333 Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Buffer Overflow
- CVE-2016-6366 Cisco Adaptive Security Appliance (ASA) SNMP Buffer Overflow
- CVE-2026-20349 Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Heap Inspection
- CVE-2024-20353 Cisco ASA and FTD Denial of Service
- CVE-2016-6367 Cisco Adaptive Security Appliance (ASA) CLI Remote Code Execution
All Cisco Adaptive Security Appliance Software vulnerabilities
Sources
Also known as GHSA-x3p6-6j82-7c7q.