CVE-2012-3940: Buffer overflow in the Cisco WebEx Recording Format (WRF) player T27 before LD SP32 EP10 and T28 before T28...

Security readout for executives and security teams

CVE-2012-3940 is a buffer overflow in the Cisco WebEx Recording Format Player. A malicious WRF recording file could let an attacker run code on a user’s machine if opened with a vulnerable player version. Exposure is most likely on workstations or shared systems where older Cisco WebEx WRF players remain installed and users can open WebEx recording files. Prioritize remediation where legacy WebEx recording playback exists on user workstations. The business risk is code execution from a malicious recording file, but active exploitation is not established in the provided evidence. Mitigation focus: Upgrade Cisco WebEx WRF Player to the fixed versions named by Cisco.; Remove vulnerable WRF players where playback is no longer needed.; Check Cisco’s advisory for current vendor guidance and supported update paths..

Prepared

Jun 24, 2026, 19:46 UTC (UTC+00:00)

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