Talos is a organization tracked across 1 threat cluster and 1 intelligence report mention on ThreatCluster. First observed April 23, 2026; most recent activity April 23, 2026.
A sophisticated backdoor malware named Firestarter has been discovered on Cisco Firepower devices, attributed to the state-sponsored threat actor UAT-4356. The malware exploits two vulnerabilities, CVE-2025-20333 and…