Cisco Secure Firewall Management Center (FMC)
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As of 10/22/2026, Cisco Secure Firewall Management Center (FMC) recorded 21 security vulnerabilities in the last 90 days, of which 20 are rated High or Critical. Notably, 1 of these vulnerabilities is actively exploited (KEV) according to CISA's catalog. CyStack recommends that organizations and individual users apply patches as soon as possible.
CyStack does not yet have sufficient official-source data to identify the latest version of Cisco Secure Firewall Management Center (FMC) and determine which vulnerabilities affect that version.
CyStack VulnScan continuously discovers assets, validates vulnerabilities, and helps security teams prioritize remediation across the organization.
CVE-2026-20342Cisco Secure Firewall Management Center Software Low Privileged Arbitrary File Download VulnerabilityCVE-2026-20323Cisco Secure Firewall Management Center and Secure Firewall Threat Defense Software sftunnel Unauthorized Authentication Bypass VulnerabilityCVE-2026-76412Cisco Secure Firewall Management Center Software Authenticated Privilege Escalation to Root VulnerabilityCVE-2026-20333Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Incorrect Comparison VulnerabilitiesCVE-2026-20334Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Coding Standards Vulnerabilities| Vulnerability | Exploitation status | Fix | Published | Severity |
|---|---|---|---|---|
CVE-2026-20342Cisco Secure Firewall Management Center Software Low Privileged Arbitrary File Download Vulnerability | Exploitation statusNot exploited | FixNo |
| SeverityHigh |
CVE-2026-20323Cisco Secure Firewall Management Center and Secure Firewall Threat Defense Software sftunnel Unauthorized Authentication Bypass Vulnerability | Exploitation statusNot exploited | FixNo | Published09/16/2026 | SeverityHigh |
|---|
CVE-2026-76412Cisco Secure Firewall Management Center Software Authenticated Privilege Escalation to Root Vulnerability | Exploitation statusNot exploited | FixNo | Published09/16/2026 | SeverityHigh |
|---|
CVE-2026-20333Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Incorrect Comparison Vulnerabilities | Exploitation statusNot exploited | FixNo | Published09/16/2026 | SeverityHigh |
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CVE-2026-20334Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Coding Standards Vulnerabilities | Exploitation statusNot exploited | FixNo | Published09/16/2026 | SeverityHigh |
|---|
CVE-2026-20332Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Improper Access Control Vulnerabilities | Exploitation statusNot exploited | FixNo | Published09/16/2026 | SeverityCritical |
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CVE-2026-20344Cisco Secure Firewall Management Center Software SQL Injection Vulnerability | Exploitation statusNot exploited | FixNo | Published09/16/2026 | SeverityHigh |
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CVE-2026-20343Cisco Secure Firewall Management Center Software Information Disclosure and Disk Denial of Service Vulnerability | Exploitation statusNot exploited | FixNo | Published09/16/2026 | SeverityHigh |
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CVE-2026-76413Cisco Secure Firewall Management Center Software Single Sign-On Token Forgery of Administrator Account Vulnerability | Exploitation statusNot exploited | FixNo | Published09/16/2026 | SeverityHigh |
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CVE-2026-20336Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Resource Lifetime Management Vulnerabilities | Exploitation statusNot exploited | FixNo | Published09/16/2026 | SeverityHigh |
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