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Cisco finally patched a maximum-severity AsyncOS zero-day exploited in attacks targeting Secure Email Gateway (SEG) appliances since November 2025. [...]
Cisco on Thursday released security updates for a maximum-severity security flaw impacting Cisco AsyncOS Software for Cisco Secure Email Gateway and Cisco Secure Email and Web Manager, nearly a month after the company disclosed that it had been exploited as a zero-day by a China-nexus advanced persistent threat (APT) actor codenamed UAT-9686
No timeline for a patch Suspected Chinese-government-linked threat actors have been battering a maximum-severity Cisco AsyncOS zero-day vulnerability in some Secure Email Gateway (SEG) and Secure Email and Web Manager (SEWM) appliances for nearly a month, and there's no timeline for a fix.…
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 with non-default configurations. [...]