CVE-2007-4939: Guliverkli Media Player Classic

High severity, CVSS 9.3. EPSS: 11.9% chance of exploitation in the next 30 days.

Heap-based buffer overflow in mplayerc.exe in Media Player Classic (MPC) 6.4.9.0 and earlier, as used standalone and in mympc (aka CD-Storm) 1.0.0.1, StormPlayer 1.0.4, and possibly other products, allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a .avi file with an "indx truck size" of 0xffffffff, and certain wLongsPerEntry and nEntriesInuse values.

Affected products

• Guliverkli Media Player Classic: up to and including 6.4.9.0
• Mympc Cd-Storm: version 1.0.0.1 only
• Verycd Stormplayer: version 1.0.4 only

Published 2007-09-18. Last modified 2026-06-16.