CVE-2005-2758: Symantec Antivirus Scan Engine

High severity, CVSS 10.0. EPSS: 13.4% chance of exploitation in the next 30 days.

Integer signedness error in the administrative interface for Symantec AntiVirus Scan Engine 4.0 and 4.3 allows remote attackers to execute arbitrary code via crafted HTTP headers with negative values, which lead to a heap-based buffer overflow.

Affected products

• Symantec Antivirus Scan Engine: version 4.0 only; version 4.3 only
• Symantec Antivirus Scan Engine For Network Attached Storage: version 4.3 only

Published 2005-10-05. Last modified 2026-06-16.