Threat intelligence / Vulnerability
CVE-2026-20131
Cisco Secure Firewall Management Center (FMC) Software and Cisco Security Cloud Control (SCC) Firewall Management contain a deserialization of untrusted data vulnerability in the web-based management interface that could allow an unauthenticated, remote attacker to execute arbitrary Java code as root on an affected device.
Vulnerability
TypeVulnerability
External ID—
First seen2026-03-19
Last seen2026-03-19
Confidence
—
Cisco Secure Firewall Management Center (FMC) Software and Cisco Security Cloud Control (SCC) Firewall Management contain a deserialization of untrusted data vulnerability in the web-based management interface that could allow an unauthenticated, remote attacker to execute arbitrary Java code as root on an affected device.
Labels
CISA KEV context
Vendor / productCisco Secure Firewall Management Center (FMC)
Added2026-03-19
Due date2026-03-22
2 recorded
Relationships
2 external