CVE-2017-18270: Linux Kernel

High severity, CVSS 7.1. EPSS: 0.4% chance of exploitation in the next 30 days.

In the Linux kernel before 4.13.5, a local user could create keyrings for other users via keyctl commands, setting unwanted defaults or causing a denial of service.

Affected products

• Linux Linux Kernel: before 4.13.5 (fixed in 4.13.5)

Published 2018-05-18. Last modified 2026-06-17.