Cisco has finally patched a maximum-level security issue which was allegedly being targeted by Chinese hackers

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

Cisco finally patches seven-week-old zero-day flaw in Secure Email Gateway products

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

Cisco finally fixes AsyncOS zero-day exploited since November

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

Cisco Patches Zero-Day RCE Exploited by China-Linked APT in Secure Email Gateways

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 ...
Hosted on MSN

Cisco email security products actively targeted in zero-day campaign

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 ...
Dark Reading

Cisco VPNs, Email Services Hit in Separate Threat Campaigns

A variety of Cisco security products have been under fire this month, thanks to two separate campaigns of very different natures. On Wednesday, Cisco revealed that a newly identified China-linked ...