Exploited Vulnerabilities DailyCVE-2026-20131: Cisco Secure Firewall Management Center (FMC)
EPSS43.1%No. 913 of 1739 in KEV
CVE year2026listed the same year
Same vendor in KEV100
Same product2
| Field | Value |
|---|---|
| Vendor | Cisco |
| Product | Secure Firewall Management Center (FMC) |
| Name | Cisco Secure Firewall Management Center (FMC) Software and Cisco Security Cloud Control (SCC) Firewall Management Deserialization of Untrusted Data Vulnerability |
| Added to KEV | 2026-03-19 |
| US federal due date | 2026-03-22 |
| Ransomware use | Known |
| CWE | CWE-502 |
CISA description
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.
Other entries for this product
| CVE | Vendor / product | Added | EPSS | Ransomware |
|---|---|---|---|---|
| CVE-2026-20316 | Cisco Secure Firewall Management Center (FMC) | 2026-07-29 | 35.0% | Known |
Data from CISA's Known Exploited Vulnerabilities (KEV) catalog. EPSS is FIRST's estimated probability of exploitation activity in the next 30 days, refreshed weekly. Always follow the vendor's official guidance.
About this page
A Cisco Secure Firewall Management Center (FMC) vulnerability added to CISA's Known Exploited Vulnerabilities catalog on 2026-03-19.