CVE-2010-3135: Untrusted search path vulnerability in Cisco Packet Tracer 5.2 allows local users, and possibly remote atta...

Security readout for executives and security teams

CVE-2010-3135 affects Cisco Packet Tracer 5.2 as described in the CVE record. A malicious DLL placed beside a Packet Tracer project file could cause arbitrary code execution through DLL hijacking. This is most relevant where users open .pkt or .pkz files from untrusted folders. Exposure appears limited to environments still using Cisco Packet Tracer 5.2 and handling .pkt or .pkz files. Training labs, education workstations, and shared download locations are the most plausible exposure points. The provided sources do not identify broader versions or products. Treat this as a targeted hygiene issue, not an enterprise-wide emergency based on the provided evidence. Prioritize if Packet Tracer 5.2 is still used in labs or by staff who exchange project files externally. Mitigation focus: Check Cisco or Packet Tracer vendor guidance for affected versions and fixes.; Retire or replace Cisco Packet Tracer 5.2 where feasible.; Avoid opening .pkt or .pkz files from untrusted directories..

Prepared

Jun 28, 2026, 01:40 UTC (UTC+00:00)

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