Cisco Talos links SD-WAN key-stealing malware to infrastructure used by China's Volt Typhoon
Cisco Talos reported on October 28, 2026, that a hacking group it tracks as UAT-11473 exploited CVE-2026-20127, a critical flaw in Cisco Catalyst SD-WAN controllers, to install KeyDrift, malware built to steal encryption key material. Talos assessed with high confidence that the group's infrastructure overlaps considerably with Silent Train, a covert network that Lumen's Black Lotus Labs says China's Volt Typhoon used in at least four confirmed zero-day campaigns. Cisco released fixes for the flaw in February 2026.