P4Verified

CVE-2016-2568: polkit (exact versions not specified); +2 more affected products

CVE-2016-2568. CVSS 3.1 base score 7.8 (HIGH, NVD). EPSS 0.00366 (percentile 0.28384), scored 2026-10-08.

Affected technology

polkit · Exact affected versions not specified by the source
freedesktop

enterprise linux · 6.0
redhat

enterprise linux · 7.0
redhat

n/a · n/a
Vendor not specified by the source

Component: Not specified by the source

Attack conditions (NVD, CVSS 3.1): Local · Low privileges required · No user interaction required

What an attacker can do

The source says 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. NVD’s CVSS 3.1 assessment (base score 7.8/10) rates confidentiality, integrity and availability impact as high.

Published 2026-10-09 03:15:28.207297+00:00

CWE: CWE-116
CCR priority: 31.3 /100 (P4)
CVSS 3.1: 7.8 /10 · CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H · NVD
EPSS: 0.00366 · percentile 0.28384 · 2026-10-08
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-09 03:13:32.966430+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2016-2568.html