CVE-2026-72066CWE-120

CVE-2026-72066

High · published August 15, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
6.8
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

cpu: hotplug: Bound hotplug states sysfs output

states_show() adds CPU hotplug state names into a single sysfs buffer

using sprintf(). With enough registered states, this can write past the

end of the PAGE_SIZE buffer.

Use sysfs_emit_at() so output is bounded.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00176 · 6.8th percentile
Weakness
CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Published
2026-08-15T10:21Z
References (8)
EPSS history
Timeline
  • 15 AUG 05:52Z
    cpu: hotplug: Bound hotplug states sysfs output
    cvelistv5