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Cisco confirms CVE-2026-20079 Secure FMC flaw exploited in attacks

BleepingComputer·September 9, 2026·1 min read
Cisco confirms CVE-2026-20079 Secure FMC flaw exploited in attacks

Cisco confirmed that a maximum-severity authentication bypass vulnerability, CVE-2026-20079, in its Secure Firewall Management Center (FMC) software is being actively exploited in attacks. The flaw allows attackers to bypass authentication, potentially gaining unauthorized access to affected systems. Cisco urges users to apply patches immediately.

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