At least one of these groups allegedly targeted Cisco Secure Email Gateway, and Cisco Secure Email and Web Manager instances ...

Chinese hackers are behind attacks on AsyncOS Software that allow complete takeover of the appliance, company says.

Cisco finally patched a maximum-severity AsyncOS zero-day exploited in attacks targeting Secure Email Gateway (SEG) ...

Cisco released fixes for CVE-2025-20393, a CVSS 10.0 zero-day RCE flaw in AsyncOS exploited by a China-linked APT via email ...

Cisco patched an Email Gateway and Secure Email zero-day exploited by Chinese hackers to deploy the AquaShell backdoor.

Cisco is updating its AMP endpoint security platform with new email security services, and expanded capabilities designed to protect employee devices from ransomware, cryptomining, and fileless ...

Chinese hackers are exploiting a critical Cisco email security flaw, gaining root access and installing backdoors. This zero-day vulnerability, CVE-2025-20393, affects specific configurations and ...

Cisco Systems released security patches for its email, Web and content security appliances in order to address vulnerabilities that could allow attackers to execute commands on the underlying OS or ...