CVE-2020-3311 Cisco Firepower Management Center Open Redirect Vulnerability
An unauthenticated remote attacker can redirect users to malicious web pages via improper input validation in the Cisco FMC web interface.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2020-3311?
CVE-2020-3311 is a medium-severity vulnerability in Cisco Secure Firewall Management Center, published on 6 May 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A vulnerability in the web interface of Cisco Firepower Management Center (FMC) Software could allow an unauthenticated, remote attacker to redirect a user to a malicious web page. The vulnerability is due to improper input validation of HTTP request parameters. An attacker could exploit this vulnerability by intercepting and modifying an HTTP request from a user. A successful exploit could allow the attacker to redirect the user to a specific malicious web page.
Weakness: CWE-601
Which versions are affected by CVE-2020-3311?
It affects 1 product.
Products include Cisco Secure Firewall Management Center.
How do I fix CVE-2020-3311?
No fix has been published for CVE-2020-3311 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-3311 being exploited?
There is no known exploitation of CVE-2020-3311 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-vgvm-xpj2-2874.