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 Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | no-fix-debian-deb-package | May 15, 2025 | May 15, 2025 | |
| Redhat_linux | — | no-fix-redhat-rpm-package | Jul 9, 2025 | Jan 19, 2016 |
| Ubuntu | no-fix-ubuntu-package | Jun 26, 2025 | Feb 13, 2017 |
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