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RequestGuard Vulnerabilities
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CVE record

CVE-2026-20131

Cisco Secure Firewall Management Center (FMC) Software and Cisco Security Cloud Control (SCC) Firewall Management Deserialization of Untrusted Data Vulnerability

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.

CVE evidence

Known exploitation

Listed in CISA KEV

Absence from the fetched catalog does not establish that exploitation has not occurred.

Severity

unknown

No parseable CVSS vector returned

Affected packages

0

Supported package records returned by OSV. Vendor and product names are not used to infer matches.

CISA Known Exploited Vulnerabilities

Catalog record

Vendor / project
Cisco
Product
Secure Firewall Management Center (FMC)
Date added
Mar 19, 2026
CISA federal remediation due date
Mar 22, 2026
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Known ransomware campaign use
Known
CWE
CWE-502

OSV package mapping

Affected open-source packages

OSV did not return a package mapping in the five supported ecosystems. RequestGuard does not infer package names from the CISA vendor or product fields.