CVE-2026-20316: Actively Exploited Cisco FMC Flaw Exposes Sensitive Data

<img width="400" height="234" src="https://socprime.com/wp-content/uploads/CVE-2026-20316-400x234.

CVE-2026-20316

July 30, 2026 · SOCPrime · Severity: HIGH

<img width="400" height="234" src="https://socprime.com/wp-content/uploads/CVE-2026-20316-400x234.

Key Takeaways

The issue is caused by static credentials for a low-privileged account and allows an unauthenticated remote attacker to sign in to an affected applian.
Although the flaw has a CVSS score of 5.3, Cisco assigned it a High Security Impact Rating because it can be chained with other weaknesses in the same. Cisco has released emergency hot fixes for an actively exploited vulnerability impacting Cisco Secure Firewall Management Center (FMC) Software.