CVE-2021-1477 Cisco Firepower Management Center Software Policy Vulnerability
Authenticated attackers can bypass access controls to overwrite security policies on Cisco Firepower Management Center devices.
- 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-2021-1477?
CVE-2021-1477 is a medium-severity missing authorization vulnerability in Cisco Secure Firewall Management Center, published on 29 Apr 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability in an access control mechanism of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to access services beyond the scope of their authorization. This vulnerability is due to insufficient enforcement of access control in the affected software. An attacker could exploit this vulnerability by directly accessing the internal services of an affected device. A successful exploit could allow the attacker to overwrite policies and impact the configuration and operation of the affected device.
Weakness: CWE-284
Which versions are affected by CVE-2021-1477?
It affects 1 product.
Products include Cisco Secure Firewall Management Center.
How do I fix CVE-2021-1477?
No fix has been published for CVE-2021-1477 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2021-1477 being exploited?
There is no known exploitation of CVE-2021-1477 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-3fhj-6hmf-3c6x.