CVE-2009-2793: Netbsd

Medium severity, CVSS 4.6. EPSS: 0.5% chance of exploitation in the next 30 days.

The kernel in NetBSD, probably 5.0.1 and earlier, on x86 platforms does not properly handle a pre-commit failure of the iret instruction, which might allow local users to gain privileges via vectors related to a tempEIP pseudocode variable that is outside of the code-segment limits.

Affected products

• Netbsd Netbsd: up to and including 5.0.1; version 0.8 only; version 0.9 only; version 1.0 only; version 1.1 only; version 1.2 only; …

Published 2009-09-18. Last modified 2026-06-16.