CVE-2019-16028 Cisco Firepower Management Center Lightweight Directory Access Protocol Authentication Bypass Vulnerability
Unauthenticated attackers can bypass LDAP authentication to gain administrative access and execute arbitrary actions on Cisco Firepower Management Center.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-16028?
CVE-2019-16028 is a critical authentication bypass vulnerability in Cisco Secure Firewall Management Center, published on 23 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) could allow an unauthenticated, remote attacker to bypass authentication and execute arbitrary actions with administrative privileges on an affected device. The vulnerability is due to improper handling of Lightweight Directory Access Protocol (LDAP) authentication responses from an external authentication server. An attacker could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to gain administrative access to the web-based management interface of the affected device.
Weakness: CWE-287
Which versions are affected by CVE-2019-16028?
It affects 1 product.
Products include Cisco Secure Firewall Management Center.
How do I fix CVE-2019-16028?
No fix has been published for CVE-2019-16028 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2019-16028 being exploited?
There is no known exploitation of CVE-2019-16028 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-wgx9-9frm-4cgq.