CVE-2026-20003 SQL injection in Cisco Secure Firewall Management Center (FMC)
Authenticated attackers with specific admin roles can exploit SQL injection in the REST API to read database contents and underlying OS files.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-20003?
CVE-2026-20003 is a medium-severity SQL injection vulnerability in Cisco Secure Firewall Management Center, published on 4 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A vulnerability in the REST API of Cisco Secure FMC Software could allow an authenticated, remote attacker to conduct SQL injection attacks on an affected system. This vulnerability is due to inadequate validation of user-supplied input. An attacker could exploit this vulnerability by sending crafted requests to an affected device. A successful exploit could allow the attacker to obtain read access to the database and read certain files on the underlying operating system. To exploit this vulnerability, the attacker would need valid user credentials with any of the following roles: Administrator Security approver Intrusion admin Access admin Network admin
Weakness: CWE-89
Which versions are affected by CVE-2026-20003?
It affects 1 product.
Products include Cisco Secure Firewall Management Center.
How do I fix CVE-2026-20003?
No fix has been published for CVE-2026-20003 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-20003 being exploited?
There is no known exploitation of CVE-2026-20003 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-rgg4-82q2-jw5v.