CVE-2007-3777: Grisoft Avg Antivirus

High severity, CVSS 7.2. EPSS: 0.4% chance of exploitation in the next 30 days.

avg7core.sys 7.5.0.444 in Grisoft AVG Anti-Virus 7.5.448 and Free Edition 7.5.446, provides an internal function that copies data to an arbitrary address, which allows local users to gain privileges via arbitrary address arguments to a function provided by the 0x5348E004 IOCTL for the generic DeviceIoControl handler.

Affected products

• Grisoft Avg Antivirus: version 7.5.446 only; version 7.5.448 only

Published 2007-07-15. Last modified 2026-06-16.