CVE-2014-3262: The Locator/ID Separation Protocol (LISP) implementation in Cisco IOS 15.3(3)S and earlier and IOS XE does...

Security readout for executives and security teams

This issue can let a remote attacker disrupt traffic handling on affected Cisco IOS or IOS XE devices using LISP. The described impact is a denial of service involving CEF outage and packet drops. Business urgency depends on whether LISP is enabled on production routers and whether those devices are reachable by untrusted traffic. Exposure is most likely on Cisco IOS or IOS XE devices using LISP, especially where LISP control traffic can arrive from untrusted networks. Organizations not running LISP are less likely to be affected, based on the provided description. Treat this as a network availability risk, not a data theft issue. Prioritize if affected Cisco routing infrastructure supports critical connectivity or is exposed to untrusted networks. Lack of CVSS and exploit evidence lowers certainty, but production traffic disruption can still be material. Mitigation focus: Check Cisco's advisory for fixed software, workarounds, and device-specific applicability.; Inventory Cisco IOS and IOS XE routers for LISP enablement.; Restrict untrusted access to LISP control-plane traffic where operationally feasible..

Prepared

Jun 14, 2026, 14:16 UTC (UTC+00:00)

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