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CVE-2026-20079 is a vulnerability classified as Authentication Bypass Using an Alternate Path or Channel, affecting Cisco Secure Firewall Management Center (FMC) (affected versions: 7.0.0, 7.0.0.1, and other affected versions). This vulnerability is rated Critical, with a CVSS score of 10. This vulnerability has been observed being exploited in the wild.
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A vulnerability in the web interface of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated, remote attacker to bypass authentication and execute script files on an affected device to obtain root access to the underlying operating system.
This vulnerability is due to an improper system process that is created at boot time. An attacker could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute a variety of scripts and commands that allow root access to the device.
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