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4 March 2026

Vulnerabilities first published on this day (UTC), newest first.

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All Critical High Medium Low Exploited only Public exploit

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  • Critical 10.0
    CVE-2026-20131 Exploited · Ransomware Public exploit EPSS 44%

    Cisco Secure Firewall Management Center Software Remote Code Execution Vulnerability

    A vulnerability in the web-based management interface of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated, remote attacker to execute arbitrary Java code as root on an affected device. This vulnerability is due to ins…

    Cisco Cisco Secure Firewall Management Center (FMC) Network devices
    KEV Mar 19, 2026
  • Critical 10.0
    CVE-2026-20079 Exploited Public exploit Scanner template EPSS 89%

    Cisco Secure Firewall Management Center Authentication Bypass Remote Code Execution Vulnerability

    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 oper…

    Cisco Cisco Secure Firewall Management Center (FMC) Network devices
    KEV Sep 9, 2026