CVE-2010-4677: emWEB on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software before 8.2(3) allows re...

Security readout for executives and security teams

This flaw can let a remote attacker crash the Cisco ASA emWEB service on ASA 5500 devices running software before 8.2(3). The published impact is denial of service, not data theft or device takeover. Business urgency depends on whether affected ASA web management is exposed to untrusted networks. Exposure is most likely on Cisco ASA 5500 appliances running ASA software before 8.2(3) where emWEB or web management is reachable. Internet-facing or broadly reachable management interfaces increase operational risk. Address exposed or business-critical ASA 5500 devices first. The known impact is service disruption, but perimeter appliance outages can affect administration, VPN operations, and incident response. Mitigation focus: Inventory Cisco ASA 5500 devices and record ASA software versions.; Prioritize devices running software before 8.2(3).; Review Cisco guidance and upgrade affected devices to a fixed, supported release..

Prepared

Jun 28, 2026, 01:17 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.