CVE-2024-21947CWE-1220

Improper input validation in the system management mode (SMM) could allow a privileged attacker to overwrite arbitrary memory potentially resulting in…

High · published September 6, 2025

CVSS v3.1
7.5
EPSS
0%
Percentile
2.8
In the wild
Unconfirmed
What it is

Improper input validation in the system management mode (SMM) could allow a privileged attacker to overwrite arbitrary memory potentially resulting in arbitrary code execution at the SMM level.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00136 · 2.8th percentile
Weakness
CWE-1220 · Insufficient Granularity of Access Control
Published
2025-09-06T17:10Z
EPSS history
Timeline
  • 06 SEP 17:10Z
    Improper input validation in the system management mode (SMM) could allow a privileged attacker to overwrite arbitrary memory potentially resulting in…
    cvelistv5