Cisco notified customers this week to patch a critical vulnerability that could allow attackers to bypass authentication and login into the web management interface of Cisco email gateway appliances ...

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 ...

It's been 50 years since the first networked email using the "@" sign traveled between two computers. The computers are now obsolete, as is the software they used to send the messages. Email, on the ...

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 ...

New Cisco launch: Cisco unveiled Secure Email Threat Defense to protect against advanced email threats across multiple platforms with API-level integration. Why it matters: Email remains the top ...

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 ...

Businesses using Cisco Secure Email Gateways (SEG) are urged to update their systems immediately following the disclosure of a critical vulnerability that could grant attackers complete control over ...

The Chinese threat group, tracked as UAT-9686, has deployed a collection of custom-built hacking tools to maintain persistent access to compromised systems. Cisco has dropped an urgent security alert ...

The unpatched flaw affects AsyncOS-based Secure Email appliances, with Cisco investigating scope and urging rebuilds in confirmed compromise cases. Cisco has warned that a China-linked hacking group ...

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 ...

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 ...