Cisco Patches Zero-Day RCE Exploited by China-Linked APT in Secure Email Gateways - Printable Version +- Hack Forums (https://hackforums.net) +-- Forum: General Topics (https://hackforums.net/forumdisplay.php?fid=7) +--- Forum: World (https://hackforums.net/forumdisplay.php?fid=445) +---- Forum: News and Happenings (https://hackforums.net/forumdisplay.php?fid=89) +---- Thread: Cisco Patches Zero-Day RCE Exploited by China-Linked APT in Secure Email Gateways (/showthread.php?tid=6318436)

Cisco Patches Zero-Day RCE Exploited by China-Linked APT in Secure Email Gateways - Stanley - Jan 25, 2026 Cisco Patches Zero-Day RCE Exploited by China-Linked APT in Secure Email Gateways 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. The vulnerability, tracked as CVE-2025-20393 (CVSS https://thehackernews.com/2026/01/cisco-patches-zero-day-rce-exploited-by.html