CVE-2009-2450: Tallemu Online Armor Personal Firewall Av+

High severity, CVSS 7.2. EPSS: 0.8% chance of exploitation in the next 30 days.

The OAmon.sys kernel driver 3.1.0.0 and earlier in Tall Emu Online Armor Personal Firewall AV+ before 3.5.0.12, and Personal Firewall 3.5 before 3.5.0.14, allows local users to gain privileges via crafted METHOD_NEITHER IOCTL requests to \Device\OAmon containing arbitrary kernel addresses, as demonstrated using the 0x830020C3 IOCTL.

Affected products

• Tallemu Online Armor Personal Firewall Av+: up to and including 3.5.0.11; version 3.5.0.6 only; version 3.5.0.9 only
• Tallemu Personal Firewall: up to and including 3.5.0.13; version 3.5.0.1 only; version 3.5.0.2 only; version 3.5.0.3 only; version 3.5.0.4 only; version 3.5.0.5 only; …

Published 2009-07-13. Last modified 2026-06-16.