Cisco Secure Firewall Management Center (FMC) known exploited vulnerabilities
We track 3 CVEs in Cisco Secure Firewall Management Center (FMC). All of them are on CISA's Known Exploited Vulnerabilities catalog, meaning CISA has evidence of exploitation in the wild (listed 2026–2026). CISA flags 2 of them as used in ransomware campaigns. The most recent is CVE-2026-20079, added to KEV on .
Also listed as: Secure Firewall Management Center (FMC) and Security Cloud Control (SCC) Firewall Management. CISA, NVD and vendor advisories name the same product differently; each CVE page keeps the wording from its source.
- CVEs tracked
- 3
- On CISA KEV
- 3
- Ransomware use
- 2
- Rated critical
- 2
Every Cisco Secure Firewall Management Center (FMC) CVE we track
| CVE / Vulnerability | Severity | CVSS | EPSS | Added to KEV | Patch by |
|---|---|---|---|---|---|
| CVE-2026-20079 Cisco FMC Authentication Bypass Enables Root OS Accesswrite-up | [ CRITICAL ] | 10.0 | 88.2% | ||
| CVE-2026-20316 Hard-coded credential in Cisco Secure FMC enables unauthenticated loginransomware usewrite-up | [ MEDIUM ] | 5.3 | 35.1% | ||
| CVE-2026-20131 Cisco Secure Firewall Management Center (FMC) Software and Cisco Security Cloud Control (SCC) Firewall Management Deserialization of Untrusted Data Vulnerabilityransomware use | [ CRITICAL ] | 10.0 | 43.2% |
Sorted by date added to KEV. Severity and CVSS as stated by NVD or the vendor; EPSS from FIRST.org. "Patch by" is CISA's BOD 22-01 deadline for US federal agencies, a useful priority signal for everyone else. Machine-readable: /api/v1/vendors/cisco.json.
Our Cisco Secure Firewall Management Center (FMC) coverage
Other Cisco products
Every row links to its CVE record with the CISA required action, catalog coverage and primary sources. We describe impact and remediation only; no exploit code. See the full KEV tracker or compare KEV catalogs.