VULNERABILITY INTELLIGENCE

CVE-2026-3888

CVSS score7.8 HIGH
EPSS probability1.38%
CISA KEVNot currently listed
Published2026-03-17
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Description

Local privilege escalation in snapd on Linux allows local attackers to get root privilege by re-creating snap's private /tmp directory when systemd-tmpfiles is configured to automatically clean up this directory. This issue affects Ubuntu 16.04 LTS, 18.04 LTS, 20.04 LTS, 22.04 LTS, and 24.04 LTS.

Weakness classification

  • CWE-268: Privilege Chaining

Primary references