CVE-2016-9209: Cisco Firepower Services For Adaptive Security Appliance

Medium severity, CVSS 4.3. EPSS: 1.2% chance of exploitation in the next 30 days.

A vulnerability in TCP processing in Cisco FirePOWER system software could allow an unauthenticated, remote attacker to download files that would normally be blocked. Affected Products: The following Cisco products are vulnerable: Adaptive Security Appliance (ASA) 5500-X Series with FirePOWER Services, Advanced Malware Protection (AMP) for Networks - 7000 Series Appliances, Advanced Malware Protection (AMP) for Networks - 8000 Series Appliances, FirePOWER 7000 Series Appliances, FirePOWER 8000 Series Appliances, FirePOWER Threat Defense for Integrated Services Routers (ISRs), Next Generation Intrusion Prevention System (NGIPS) for Blue Coat X-Series, Sourcefire 3D System Appliances, Virtual Next-Generation Intrusion Prevention System (NGIPSv) for VMware. More Information: CSCvb20102. Known Affected Releases: 2.9.7.10.

Affected products

• Cisco Firepower Services For Adaptive Security Appliance: version 5.3.0 only; version 5.4.0 only; version 5.4.1 only; version 5.4.1.1 only; version 5.4.1.2 only; version 5.4.1.3 only; …

Published 2016-12-14. Last modified 2026-06-17.