CVE-2021-34751 Cisco Firepower Management Center Software Configuration Information Disclosure Vulnerability
An authenticated attacker with low privileges can view sensitive configuration parameters in clear text due to improper encryption in the Cisco FMC GUI.
- 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-2021-34751?
CVE-2021-34751 is a medium-severity vulnerability in Cisco Secure Firewall Management Center, published on 15 Nov 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability in the administrative web-based GUI configuration manager of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to access sensitive configuration information. The attacker would require low privilege credentials on an affected device. This vulnerability exists because of improper encryption of sensitive information stored within the GUI configuration manager. An attacker could exploit this vulnerability by logging into the GUI of Cisco FMC Software and navigating to certain sensitive configurations. A successful exploit could allow the attacker to view sensitive configuration parameters in clear text.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.[[Publication_URL{Layout()}]]This advisory is part of the October 2021 release of the Cisco ASA, FTD, and FMC Security Advisory Bundled publication. For a complete list of the advisories and links to them, see .
Weakness: CWE-317
Which versions are affected by CVE-2021-34751?
It affects 1 product.
Products include Cisco Secure Firewall Management Center.
How do I fix CVE-2021-34751?
No fix has been published for CVE-2021-34751 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-34751 being exploited?
There is no known exploitation of CVE-2021-34751 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-95xp-3pj7-m5fh.