CVE-2026-80663EPSS p5.9%
CVE-2026-80663CVE-2026-80663
Description
In the Linux kernel, the following vulnerability has been resolved:
tools/power/x86/intel-speed-select: Harden daemon pidfile open
Avoid symlink-based pidfile clobbering by opening the pidfile with
O_NOFOLLOW and validating it with fstat() before locking/writing.
The daemon currently uses a fixed pidfile path under /tmp. A local
unprivileged user can pre-create a symlink at that path and cause a
root-run daemon instance to write into an attacker-chosen file.
Scoring
| CVSS | 7.1 () |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
| EPSS | 0.17% probability of exploitation · percentile 5.9% · 2026-10-05T12:00:23Z |
| Last modified | 2026-08-29 |