CVE-2009-1430: Symantec Antivirus

High severity, CVSS 9.3. EPSS: 55.1% chance of exploitation in the next 30 days.

Multiple stack-based buffer overflows in IAO.EXE in the Intel Alert Originator Service in Symantec Alert Management System 2 (AMS2), as used in Symantec System Center (SSS); Symantec AntiVirus Server; Symantec AntiVirus Central Quarantine Server; Symantec AntiVirus (SAV) Corporate Edition 9 before 9.0 MR7, 10.0 and 10.1 before 10.1 MR8, and 10.2 before 10.2 MR2; Symantec Client Security (SCS) 2 before 2.0 MR7 and 3 before 3.1 MR8; and Symantec Endpoint Protection (SEP) before 11.0 MR3, allow remote attackers to execute arbitrary code via (1) a crafted packet or (2) data that ostensibly arrives from the MsgSys.exe process.

Affected products

• Symantec Antivirus: up to and including 9.0; up to and including 10.1; up to and including 10.2; affected versions not specified; version 10.0 only; version 10.0.1 only; …
• Symantec Antivirus Central Quarantine Server: any version
• Symantec Client Security: up to and including 3.1; version 2.0 only; version 3.0 only; version 3.0.0.359 only; version 3.0.1.1000 only; version 3.0.1.1001 only; …
• Symantec Endpoint Protection: up to and including 11.0
• Symantec System Center: any version

Published 2009-04-29. Last modified 2026-06-16.