CVE-2007-5756: Winpcap

Medium severity, CVSS 6.9. EPSS: 0.6% chance of exploitation in the next 30 days.

Multiple array index errors in the bpf_filter_init function in NPF.SYS in WinPcap before 4.0.2, when run in monitor mode (aka Table Management Extensions or TME), and as used in Wireshark and possibly other products, allow local users to gain privileges via crafted IOCTL requests.

Affected products

• Winpcap Winpcap: before 4.0.2 (fixed in 4.0.2)

Published 2007-11-14. Last modified 2026-06-16.