Cisco disclosed that a China-linked hacking group exploited a previously unknown vulnerability in its email security products, allowing attackers to compromise systems that sit at the center of enterprise email traffic. The flaw affected Cisco Secure Email Gateway and Secure Email and Web Manager appliances running AsyncOS and was actively exploited before public disclosure. The…
First seen on securityboulevard.com
Jump to article: securityboulevard.com/2025/12/chinese-hackers-exploited-a-zero-day-in-cisco-email-security-systems/
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