Cisco Secure Email and Web Manager

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• Critical 9.8
  CVE-2026-76443 Public exploit

  Cisco Secure Email Gateway Security Hardening Release

  As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Email Gateway and Cisco Secure Email and Web Manager engineering team has conducted a comprehensive internal security review. This review resulted in software ha…

  Cisco Cisco Secure Email Cisco Secure Email and Web Manager Network devices
  Sep 14, 2026
• Critical 10.0
  CVE-2025-20393 Exploited Public exploit EPSS 32%

  Cisco Secure Email Gateway and Cisco Secure Email and Web Manager Remote Command Execution Vulnerability

  A vulnerability in the Spam Quarantine feature of Cisco AsyncOS Software for Cisco Secure Email Gateway and Cisco Secure Email and Web Manager could allow an unauthenticated, remote attacker to execute arbitrary system commands on an affected device with root…

  Cisco Cisco Secure Email Cisco Secure Email and Web Manager Network devices
  Dec 17, 2025

  KEV Dec 17, 2025
• Medium 6.5
  CVE-2023-20009 Public exploit

  A vulnerability in the Web UI and administrative CLI of the Cisco Secure Email Gateway (ESA) and Cisco Secure Email and…

  Cisco Cisco Secure Email Cisco Secure Email and Web Manager Network devices
  Feb 16, 2023