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.
Advisories
Source ID Title
EUVD EUVD EUVD-2016-3642 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.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 08 Oct 2026 22:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sun, 13 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00188}

epss

{'score': 0.00293}


Sat, 12 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00124}

epss

{'score': 0.00188}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-10-08T21:14:04.480Z

Reserved: 2016-02-26T00:00:00.000Z

Link: CVE-2016-2568

cve-icon Vulnrichment

Updated: 2024-08-05T23:32:20.963Z

cve-icon NVD

Status : Modified

Published: 2017-02-13T18:59:00.393

Modified: 2026-10-08T22:16:38.407

Link: CVE-2016-2568

cve-icon Redhat

Severity : Moderate

Publid Date: 2016-01-19T00:00:00Z

Links: CVE-2016-2568 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses