Cisco Secure Firewall Management Center (FMC) and Security Cloud Control (SCC) Firewall Management: Cisco Firewall Management Center Authentication Bypass Using
› Cisco Secure Firewall Management Center (FMC) and Security Cloud Control (SCC) Firewall Management
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- started
- Sep 9, 2026
- closed
- Sep 9, 2026
- CVEs
- 1
- sources
- 3
## summary
Cisco Secure Firewall Management Center (FMC) Software and Cisco Security Cloud Control (SCC) Firewall Management contain an authentication Bypass using an alternate path or channel vulnerability that could allow an unauthenticated, remote attacker to bypass authentication and execute script files on an affected device to obtain root access to the underlying operating system. Added to CISA KEV on 2026-09-09.
severity: Actively exploited (CISA KEV)
## cve ids[1]
## affected
- See vendor advisory / CISA notes (versions not always listed in KEV feed)
## fixed in
- See vendor advisory linked in sources
## timeline[1]
CISA added CVE-2026-20079 to the KEV catalog (due 2026-09-12).
## advisories[3]
## notes & caveats
Derived from CISA KEV JSON feed catalogVersion 2026.10.21. Exact affected/fixed version strings are not always in the KEV record — verify against the vendor advisory URL. startedAt uses dateAdded (exploitation may have begun earlier).
