SQL Injection in Cisco Secure Firewall Management Center (Fmc)

CVE-2026-20003

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

Vulnerability class: SQL Injection

EPSS: 0.003 (20.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-20003?
CVE-2026-20003 is a medium-severity vulnerability in Cisco Secure Firewall Management Center (Fmc), classified under SQL Injection. CVSS score: 4.9/10. Published 2026-03-04.
How severe is CVE-2026-20003?
Medium severity. CVSS v3 base score is 4.9 out of 10.