Cisco FMC Static Credential Vulnerability (CVE-2026-20316) Exposed
In July 2026, Cisco disclosed a high-severity vulnerability (CVE-2026-20316) in its Secure Firewall Management Center (FMC) software, involving static credentials for a low-privilege account. This flaw allowed unauthenticated, remote attackers to access sensitive data on affected systems. Although the CVSS score was 5.3, Cisco rated it as High severity due to potential privilege escalation when combined with other vulnerabilities. The issue affected all on-premises FMC software versions, excluding Cloud-Delivered FMC and other related products. Cisco released hot fixes for versions 7.0, 7.2, 7.4, 7.6, 7.7, and 10.0, urging customers to apply them promptly. No workarounds were available. This incident underscores the critical importance of timely patch management and the risks associated with static credentials in security infrastructure. Organizations are reminded to regularly review and update their security configurations to mitigate potential exploitation vectors.
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