CVE-2007-1671: Avira Antivir Personal

High severity, CVSS 7.8. EPSS: 2% chance of exploitation in the next 30 days.

avpack32.dll before 7.3.0.6 in Avira AntiVir allows remote attackers to cause a denial of service (infinite loop) via a ZOO archive with a direntry structure that points to a previous file.

Affected products

• Avira Antivir Personal: up to and including 7.3.0.5

Published 2007-05-09. Last modified 2026-06-16.