VULNERABILITY INTELLIGENCE

CVE-2020-27837

CVSS score6.4 MEDIUM
EPSS probability0.23%
CISA KEVNot currently listed
Published2020-12-28
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

A flaw was found in GDM in versions prior to 3.38.2.1. A race condition in the handling of session shutdown makes it possible to bypass the lock screen for a user that has autologin enabled, accessing their session without authentication. This is similar to CVE-2017-12164, but requires more difficult conditions to exploit.

Weakness classification

  • secalert@redhat.com: CWE-362

Primary references