Executive Summary

Cisco confirmed that CVE-2026-20079, a maximum‑severity authentication bypass flaw in its Secure Firewall Management Center (FMC) software, is actively exploited in attacks. The vulnerability allows attackers to bypass authentication and gain unauthorized access to the FMC, potentially compromising network security. Cisco has issued a patch and urged customers to update immediately.

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Intelligence Metadata - Source Publisher: Bleeping Computer - Published Date: 2026-09-09T21:40:44+00:00 - Category: threat-intel

Original Description: Cisco has confirmed that a maximum-severity authentication bypass vulnerability tracked as CVE-2026-20079 in its Secure Firewall Management Center (FMC) software is being actively exploited in attacks. [...]

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