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CVE-2021-41839

nvd nist
Published: Feb 3, 2022Modified: Nov 4, 2025

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8.2
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Exploitability: 1.5 / Impact: 6.0
Source: NVD

Description

An issue was discovered in NvmExpressDxe 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.

Affected (5)

Products: Insyde: Insydeh2o
Insyde
1 product
Insydeh2o
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Insydeh2o
From 5.1 to 5.16.25
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Insydeh2o
From 5.2 to 5.26.25
Configuration C
1 vulnerable
Vulnerable SoftwareAffected Versions
Insydeh2o
From 5.3 to 5.35.25
Configuration D
1 vulnerable
Vulnerable SoftwareAffected Versions
Insydeh2o
From 5.4 to 5.43.25
Configuration E
1 vulnerable
Vulnerable SoftwareAffected Versions
Insydeh2o
From 5.5 to 5.51.25

Related CWEs

CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

References (9)

Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Vendor Advisory
Source: cve@mitre.org
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.