CVE-2026-20316: Cisco Secure Firewall Management Center Use of Hard-coded Password Vulnerability

Cisco Secure Firewall Management Center (FMC) · in CISA KEV since 2026-07-29

What it is

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.

Required action (CISA)

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2026-20316.json · all KEV CVEs