CVE-2026-20316: Cisco Secure Firewall Management Center Use of Hard-coded Password Vulnerability
Summary
Cisco Secure Firewall Management Center (FMC) has a vulnerability where a hard-coded password allows unauthenticated remote attackers to log in with a low-privileged account. This could lead to unauthorized access to sensitive data on affected systems.
IFF Assessment
This vulnerability allows attackers to gain unauthorized access to sensitive data, posing a direct threat to organizational security.
Severity
The vulnerability allows for remote, unauthenticated access to sensitive data through a hard-coded password, indicating a significant attack vector and impact, though limited to a low-privileged account.
CISA KEV: Listed as actively exploited. Federal patch due: August 01, 2026. Known ransomware use: Unknown.
Defender Context
Defenders need to be aware of this hard-coded password vulnerability in Cisco Secure Firewall Management Center, as it could be exploited for data exfiltration. Prioritizing patching or applying mitigations is crucial, especially given the federal due date. Organizations should assess their network exposure and ensure compliance with security update prioritization guidance.