CVE-2010-5161: F-Secure Internet Security 2010

Medium severity, CVSS 6.2. EPSS: 0.3% chance of exploitation in the next 30 days.

Race condition in F-Secure Internet Security 2010 10.00 build 246 on Windows XP allows local users to bypass kernel-mode hook handlers, and execute dangerous code that would otherwise be blocked by a handler but not blocked by signature-based malware detection, via certain user-space memory changes during hook-handler execution, aka an argument-switch attack or a KHOBE attack. NOTE: this issue is disputed by some third parties because it is a flaw in a protection mechanism for situations where a crafted program has already begun to execute

Affected products

• F-Secure F-Secure Internet Security 2010: version 10.00 only

Published 2012-08-25. Last modified 2026-06-16.