CVE-2016-2568

—

CVSS 3.1

7.8 high

EPSS

<1%p30

Published

Feb 13, 2017 (Feb 13, 2017)

Modified

Jun 17, 2026

Description

pkexec, when used with --user nonpriv, allows local users to escape to the parent session via a crafted TIOCSTI ioctl call, which pushes characters to the terminal's input buffer.

Vendors: freedesktop redhat
Products: polkit, enterprise linux
Weakness: CWE-116
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.4%)

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