SAN JOSE, Calif. - March 3, 2009 - Cisco today announced new managed, hosted and hybrid hosted e-mail security services that provide the industry's most versatile set of e-mail protection offerings.

Cisco confirms zero‑day (CVE‑2025‑20393) in Secure Email appliances exploited by China‑linked actors Attackers deployed Aquashell backdoor, tunneling tools, and log‑clearing utilities for persistence ...

A remote attacker could exploit the vulnerability simply by sending an email. Cisco has patched two serious vulnerabilities – one critical and one high-severity – in its email security appliance tool.

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 has addressed a high severity vulnerability that could allow remote attackers to crash Cisco Secure Email appliances using maliciously crafted email messages. The security flaw (tracked as ...

New vulnerabilities found in Cisco internal testing allow remote access and scripting that could lead to the loss of sensitive user data. Cisco has issued alerts for a vulnerability found in its email ...

Your email security appliance running Cisco AsyncOS could enter an endless loop of crashing and restarting if it attempts to process a specially crafted encrypted email. Cisco has disclosed fixes for ...