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importantSYS.SOURCE: The Hacker News2026-07-30T10:38:39+05:30

Cisco FMC Zero-Day Exploit and Static Credential Risks Exposed

A newly disclosed zero-day vulnerability in Cisco Secure Firewall Management Center (FMC) Software, CVE-2026-20316, is actively exploited, allowing unauthenticated remote access via static credentials. Cisco has released hotfixes and indicators of compromise to mitigate the risk of sensitive data exposure.

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

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