CVE-2007-3777: avg7core.sys 7.5.0.444 in Grisoft AVG Anti-Virus 7.5.448 and Free Edition 7.5.446, provides an internal fun...

Security readout for executives and security teams

This is a local privilege escalation flaw in an old Grisoft AVG Anti-Virus driver. A user already on the machine could abuse a driver function to write to arbitrary kernel memory and gain higher privileges. It is not described as remotely exploitable in the supplied sources. Exposure is likely limited to endpoints or servers still running the named AVG 7.5 builds and driver version. Because the source bundle lists no CPEs or modern product mapping, validate by installed software and driver inventory rather than product-family assumptions. Treat this as high priority only if legacy AVG 7.5 exists in the environment. The flaw can turn local access into administrative control, but the supplied evidence does not indicate remote exploitation or active campaigns. Mitigation focus: Inventory hosts for AVG Anti-Virus 7.5.448 and Free Edition 7.5.446.; Check vendor or archived AVG guidance for a fixed build before declaring remediation.; Remove or replace affected AVG 7.5 installations where vendor guidance is unavailable..

Prepared

Jun 29, 2026, 04:34 UTC (UTC+00:00)

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