CVE-2008-3373: Grisoft Avg Antivirus

Medium severity, CVSS 5.0. EPSS: 2.6% chance of exploitation in the next 30 days.

The files parsing engine in Grisoft AVG Anti-Virus before 8.0.156 allows remote attackers to cause a denial of service (engine crash) via a crafted UPX compressed file, which triggers a divide-by-zero error.

Affected products

• Grisoft Avg Antivirus: version 7.1 only; version 7.5 only; version 8.0 only

Published 2008-07-30. Last modified 2026-06-16.