CVE-2021-41838CWE-119

CVE-2021-41838

High · published February 3, 2022

CVSS v3.1
8.2
EPSS
0%
Percentile
21.8
In the wild
Unconfirmed
What it is

An issue was discovered in SdHostDriver in the kernel 5.0 through 5.5 in Insyde InsydeH2O. There is an SMM callout that allows an attacker to access the System Management Mode and execute arbitrary code. This occurs because of a Numeric Range Comparison Without a Minimum Check.

The record
Technical detail
CVSS v3.1
8.2 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00303 · 21.8th percentile
Weakness
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer
Published
2022-02-03T07:15Z
Affected products (19)
ProductVersionsFixed in
insyde/insydeh2o≥ 5.1, < 5.16.425.16.42
insyde/insydeh2o≥ 5.2, < 5.26.425.26.42
insyde/insydeh2o≥ 5.3, < 5.35.425.35.42
insyde/insydeh2o≥ 5.4, < 5.43.425.43.42
insyde/insydeh2o≥ 5.5, < 5.51.425.51.42
siemens/simatic_field_pg_m5_firmwareall versions—
siemens/simatic_field_pg_m6_firmwareall versions—
siemens/simatic_ipc127e_firmwareall versions—
siemens/simatic_ipc227g_firmwareall versions—
siemens/simatic_ipc277g_firmwareall versions—
siemens/simatic_ipc327g_firmwareall versions—
siemens/simatic_ipc377g_firmwareall versions—
siemens/simatic_ipc427e_firmwareall versions—
siemens/simatic_ipc477e_firmwareall versions—
siemens/simatic_ipc627e_firmwareall versions—
siemens/simatic_ipc647e_firmwareall versions—
siemens/simatic_ipc677e_firmwareall versions—
siemens/simatic_ipc847e_firmwareall versions—
siemens/simatic_itp1000_firmwareall versions—
References (10)
EPSS history
Timeline
  • 03 FEB 01:43Z
    An issue was discovered in SdHostDriver in the kernel 5.0 through 5.5 in Insyde InsydeH2O
    cvelistv5