Cisco Secure Firewall Management Center (FMC): Cisco Secure Firewall Management Center Use of Hard-coded Password Vulnerability
› Cisco Secure Firewall Management Center (FMC)
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- started
- Jul 29, 2026
- closed
- Jul 29, 2026
- CVEs
- 1
- sources
- 3
## summary
Cisco Secure Firewall Management Center (FMC) formerly known as Firepower Management Center contains a use of hard-coded password vulnerability that could allow an unauthenticated, remote attacker to log in to an affected device using a low-privileged account to access sensitive data within the impacted systems. Added to CISA KEV on 2026-07-29.
severity: Actively exploited (CISA KEV); known ransomware use
## 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-2026-20316 to the KEV catalog (due 2026-08-01).
## 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).
