Act
active
Flax Typhoon Actively Exploits 5 KEV Flaws; CISA Oct 11 Deadline
- Engineer — Act: CVE-2015-3306 (ProFTPD, CVSS 10.0) carries EPSS 0.98, a public GitHub PoC, and active exploitation by a Chinese nation-state actor — patch ProFTPD immediately and audit all five KEV-listed CVEs before the October 11 federal deadline.
- SOC/IR — Act: Flax Typhoon is conducting live exploitation of these edge-service flaws; initiate a threat hunt for Flax Typhoon TTPs and sweep logs for ProFTPD anomalies (suspicious anonymous access, lateral movement from FTP services) since at least early October.
- Leader — Act: A Chinese nation-state actor is actively exploiting these vulnerabilities under a binding CISA directive with an October 11 deadline — confirm whether ProFTPD or the other four affected products are present in your environment and brief leadership given the geopolitical attribution and imminent compliance requirement.
- Signals: CVE-2015-3306 — CISA KEV: listed, EPSS 0.98, public PoC on GitHub
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