Cisco Secure Email Gateway (SEG) is Cisco's email security platform that sits at the network edge to inspect and filter inbound and outbound messages, protecting against phishing, malware, and data loss.
Cisco Secure Email Gateway (SEG) is Cisco's email security platform that sits at the network edge to inspect and filter inbound and outbound messages, protecting against phishing, malware, and data loss. It runs on Cisco's AsyncOS and is widely deployed in enterprises, making its security posture and rapid patching critical as multiple zero-day vulnerabilities have been exploited in the wild, including by Chinese threat actors.
Cisco has addressed a maximum-severity vulnerability in AsyncOS, tracked as CVE-2025-20393, which has been actively exploited for at least a month. The flaw affects Secure Email Gateway (SEG) and Secure Email and Web…
Cisco has confirmed a zero-day vulnerability (CVE-2025-20393) in its Secure Email appliances that is being exploited by actors linked to China. The attackers have deployed the Aquashell backdoor to establish persistence…
Cisco disclosed a state-espionage campaign targeting its Adaptive Security Appliances (ASA), which are used for firewall and VPN functions. Attackers exploited two zero-day vulnerabilities to infiltrate government…
Cisco has reported an unpatched zero-day vulnerability (CVE-2025-20393) in its AsyncOS software, affecting Secure Email Gateway and Secure Email and Web Manager appliances. The vulnerability is being actively exploited…
Chinese hackers have targeted Cisco's Secure Email Gateway and Secure Email and Web Manager appliances by exploiting an unpatched zero-day vulnerability. The threat group UAT-9686 has utilized custom-built hacking tools…