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Cisco Firepower Extensible Operating System (FXOS) — Vulnerabilities & Security Advisories 11

All 11 CVE vulnerabilities found in Cisco Firepower Extensible Operating System (FXOS), with AI-generated Chinese analysis, references, and POCs.

Vendor: Cisco

CVE IDTitleCVSSSeverityPublished
CVE-2026-20099 Cisco UCS Manager and FXOS Software Command Injection Vulnerability CWE-78 6.7 Medium2026-02-25
CVE-2026-20091 Cisco UCS Manager and FXOS Software Stored Cross-Site Scripting Vulnerability CWE-79 4.8 Medium2026-02-25
CVE-2022-20865 Cisco FXOS Software Command Injection Vulnerability CWE-78 6.7 Medium2022-08-25
CVE-2020-3455 Cisco FXOS Software for Firepower 4100/9300 Series Appliances Secure Boot Bypass Vulnerability CWE-693 6.7 -2020-10-21
CVE-2020-3459 Cisco FXOS Software for Firepower 4100/9300 Series Command Injection Vulnerability CWE-78 7.8 -2020-10-21
CVE-2020-3545 Cisco FXOS Software Buffer Overflow Vulnerability CWE-119 6.0 Medium2020-09-04
CVE-2020-3166 Cisco FXOS Software CLI Arbitrary File Read and Write Vulnerability CWE-20 6.7 -2020-02-26
CVE-2020-3169 Cisco FXOS Software CLI Command Injection Vulnerability CWE-78 6.7 -2020-02-26
CVE-2019-12699 Cisco FXOS Software and Firepower Threat Defense Software Command Injection Vulnerabilities CWE-20 7.8 -2019-10-02
CVE-2019-1858 Cisco FXOS and NX-OS Software Simple Network Management Protocol Denial of Service Vulnerability CWE-20 8.6 -2019-05-16
CVE-2019-1700 Cisco Firepower 9000 Series Firepower 2-Port 100G Double-Width Network Module Queue Wedge Denial of Service Vulnerability CWE-399 6.1 -2019-02-21

All 11 known CVE vulnerabilities affecting Cisco Firepower Extensible Operating System (FXOS) with full Chinese analysis, references, and POCs where available.