CVE-2021-1126 Cisco Firepower Management Center Information Disclosure Vulnerability
An authenticated local attacker can view proxy server credentials stored in clear text within configuration files on Cisco Firepower Management Center.
- 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-2021-1126?
CVE-2021-1126 is a medium-severity vulnerability in Cisco Secure Firewall Management Center, published on 13 Jan 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in the storage of proxy server credentials of Cisco Firepower Management Center (FMC) could allow an authenticated, local attacker to view credentials for a configured proxy server. The vulnerability is due to clear-text storage and weak permissions of related configuration files. An attacker could exploit this vulnerability by accessing the CLI of the affected software and viewing the contents of the affected files. A successful exploit could allow the attacker to view the credentials that are used to access the proxy server.
Which versions are affected by CVE-2021-1126?
It affects 1 product.
Products include Cisco Secure Firewall Management Center.
How do I fix CVE-2021-1126?
No fix has been published for CVE-2021-1126 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-1126 being exploited?
There is no known exploitation of CVE-2021-1126 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-p733-729j-99xq.