CVE-2005-0637: OpenBSD

Medium severity, CVSS 5.0. EPSS: 1.2% chance of exploitation in the next 30 days.

The copy functions in locore.s such as copyout in OpenBSD 3.5 and 3.6, and possibly other BSD based operating systems, may allow attackers to exceed certain address boundaries and modify kernel memory.

Affected products

• OpenBSD OpenBSD: version 3.5 only; version 3.6 only

Published 2005-05-02. Last modified 2026-06-16.