Back to CVE records
High 7.8Published Feb 13, 2017
CVE-2016-2568pkexec, 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.
Updated under an hour ago ()
Does this affect you?
It affects freedesktop polkit and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Start free and add your stack
Free account, 1 product
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.
- CVSS
- 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- mitre
- NVD analysis
- Modified
- Record last updated
- Oct 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
freedesktop polkit freedesktop:polkit | all versions | NVD |
redhat enterprise_linux redhat:enterprise_linux | 6.0; 7.0 | NVD |
References
- http://www.openwall.com/lists/oss-security/2016/02/26/3mailing-list, x-refsource-mlist
- https://bugzilla.redhat.com/show_bug.cgi?id=1300746x-refsource-confirm
- https://access.redhat.com/security/cve/cve-2016-2568x-refsource-misc
- https://ubuntu.com/security/CVE-2016-2568x-refsource-misc
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=816062x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.