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CVE-2026-20316 CISA KEV · Actively exploitedLinked to ransomwareSuited to automated attack · CISA

Cisco Secure Firewall Management Center Software Static Credential Vulnerability

CVSS score

5.3

EPSS probability

%35.1

Risk score

3.7

Published

2 mo ago

Related Security News

Articles and analysis bulletins in which the press and security publications have covered this vulnerability:

The Hacker News06.08.2026

Cisco Patches 12 SD-WAN and IOS XE Flaws, Including Three 9.9 CVSS Score Bugs

Cisco has rolled out updates to address multiple critical security vulnerabilities impacting Catalyst SD-WAN and IOS XE Software as part of a comprehensive internal security review. The security issues affect Cisco Catalyst SD-WAN Software, regardless of device configuration, and Cisco IOS XE Software when it is running in autonomous or controller mode. "These vulnerabilities were found

The Cyber Express31.07.2026

CVE-2026-20316 Zero-Day Actively Exploited, Cisco Releases Fix

Cisco has released security updates for an actively exploited zero-day vulnerability, CVE-2026-20316, affecting Cisco Secure FMC (Secure Firewall Management Center) software. The flaw, disclosed on July 29, 2026, allows a remote, unauthenticated attacker to log in to vulnerable systems using a built-in low-privilege account and access sensitive data. Cisco said it detected active exploitation in July and has published indicators of compromise (IoCs) to help organizations identify potential attacks. The vulnerability was reported by Jimi Sebree of Horizon3.ai. Static credentials expose Cisco Se

Security.NL30.07.2026

Cisco meldt misbruik van hardcoded wachtwoord in firewall-beheersoftware

Aanvallers maken actief misbruik van een hardcoded wachtwoord in het Cisco Secure Firewall Management Center (FMC), software ...

The Hacker News30.07.2026

Cisco FMC Zero-Day Actively Exploited, Static Credentials Could Expose Sensitive Data

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a newly disclosed security flaw impacting Cisco Secure Firewall Management Center (FMC) Software to its Known Exploited Vulnerabilities (KEV) catalog, following reports of zero-day exploitation. The vulnerability, assigned CVE-2026-20316 (CVSS score: 5.3), could permit an unauthenticated, remote attacker to log

TheCyberThrone30.07.2026

CISA Adds Cisco Secure FMC Vulnerability to KEV

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a critical vulnerability affecting Cisco Secure Firewall Management Center (FMC) to its Known Exploited Vulnerabilities (KEV) Catalog, confirming that the…

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