CVE-2020-3307 Cisco Firepower Management Center Arbitrary Log File Write Vulnerability
Unauthenticated remote attackers can write arbitrary entries to system logs via crafted HTTP requests due to insufficient input validation.
- 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-2020-3307?
CVE-2020-3307 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, with no action from the victim.
Official description
A vulnerability in the web UI of Cisco Firepower Management Center (FMC) Software could allow an unauthenticated, remote attacker to write arbitrary entries to the log file on an affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to send incorrect information to the system log on the affected system.
Weakness: CWE-20
Which versions are affected by CVE-2020-3307?
It affects 1 product.
Products include Cisco Secure Firewall Management Center.
How do I fix CVE-2020-3307?
No fix has been published for CVE-2020-3307 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-3307 being exploited?
There is no known exploitation of CVE-2020-3307 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-6h9x-7mp9-h6hr.