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CVE-2026-20131· cisco / secure firewall management center (fmc)· CWE-502
Cisco Secure Firewall Management Center (FMC) Software and Cisco Security Cloud Control (SCC) Firewall Management Deserialization of Untrusted Data Vulnerability
Exploited in the wild. Listed by CISA on 2026-03-19; known to be used by ransomware.
44.4%likelihood of exploitation, next 30 days
99%of all CVEs are less likely
Nonecheck to confirm it
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.
No ready check is stored for this CVE. Confirm it by hand from the references.
References
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