Zero-Day Vulnerability in AsyncOS Affects Secure Email Gateway and Web Security Appliances

Zero-Day Vulnerability in AsyncOS Affects Secure Email Gateway and Web Security Appliances

First seen 20 Dec 2025, 20:59 UTC Igorslab.De 26.7

Article Content

Browse articles
ThreatCluster

A zero-day vulnerability has been identified in the AsyncOS operating system, impacting Secure Email Gateway and Web Security Appliances. These systems serve as central filters for email and web traffic, potentially exposing users to security risks. Details on the exploit and patch status remain limited.