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THREAT OPS › Threat News › [CISA KEV] CVE-2026-20079 — Cisco Secure Firewall Management Center (FMC) and Security Cloud Control (SCC) Firewall Management: Cisco Firewall Management Center Authentication Bypass Using an Alternate Path or Channel Vulnerability

[CISA KEV] CVE-2026-20079 — Cisco Secure Firewall Management Center (FMC) and Security Cloud Control (SCC) Firewall Management: Cisco Firewall Management Center Authentication Bypass Using an Alternate Path or Channel Vulnerability

highcisa_kevPublished 2026-09-09

CVE: CVE-2026-20079 Vendor: Cisco Product: Secure Firewall Management Center (FMC) and Security Cloud Control (SCC) Firewall Management Vulnerability: Cisco Firewall Management Center Authentication Bypass Using an Alternate Path or Channel Vulnerability Date Added: 2026-09-09 Required Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prior

MITRE ATT&CK techniques

Cloud ServicesT1021.007

Indicators of compromise

CVE-2026-20079cve
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-onprem-fmc-authbypass-5JPp45V2url

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-20079