CVE-2016-9031: Joyent Smartos

High severity, CVSS 7.8. EPSS: 0.5% chance of exploitation in the next 30 days.

An exploitable integer overflow exists in the Joyent SmartOS 20161110T013148Z Hyprlofs file system. The vulnerability is present in the Ioctl system call with the command HYPRLOFS_ADD_ENTRIES when dealing with 32-bit file systems. An attacker can craft an input that can cause a kernel panic and potentially be leveraged into a full privilege escalation vulnerability. This vulnerability is distinct from CVE-2016-8733.

Affected products

• Joyent Smartos: version 20161110t013148z only

Published 2016-12-14. Last modified 2026-06-17.