CVE-2021-41837

EUVD-2021-28838
An issue was discovered in AhciBusDxe in the kernel 5.0 through 5.5 in Insyde InsydeH2O. Because of an Untrusted Pointer Dereference that causes SMM memory corruption, an attacker may be able to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.2 HIGH
LOCAL
LOW
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 19%
Affected Products (NVD)
VendorProductVersion
insydeinsydeh2o
5.0 ≤
𝑥
< 5.08.41
insydeinsydeh2o
5.1 ≤
𝑥
< 5.16.41
insydeinsydeh2o
5.2 ≤
𝑥
< 5.26.41
insydeinsydeh2o
5.3 ≤
𝑥
< 5.35.41
insydeinsydeh2o
5.4 ≤
𝑥
< 5.43.41
insydeinsydeh2o
5.5 ≤
𝑥
< 5.51.41
siemenssimatic_field_pg_m5_firmware
*
siemenssimatic_field_pg_m6_firmware
*
siemenssimatic_ipc127e_firmware
*
siemenssimatic_ipc227g_firmware
*
siemenssimatic_ipc277g_firmware
*
siemenssimatic_ipc327g_firmware
*
siemenssimatic_ipc377g_firmware
*
siemenssimatic_ipc427e_firmware
*
siemenssimatic_ipc477e_firmware
*
siemenssimatic_ipc627e_firmware
*
siemenssimatic_ipc647e_firmware
*
siemenssimatic_ipc677e_firmware
*
siemenssimatic_ipc847e_firmware
*
siemenssimatic_itp1000_firmware
*
𝑥
= Vulnerable software versions