CVE-2021-33625

7.5 HIGH
Published: February 03, 2022 Modified: November 04, 2025
View on NVD

Description

An issue was discovered in Kernel 5.x in Insyde InsydeH2O, affecting HddPassword. Software SMI services that use the Communicate() function of the EFI_SMM_COMMUNICATION_PROTOCOL do not check whether the address of the buffer is valid, which allows use of SMRAM, MMIO, or OS kernel addresses.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf
Source: cve@mitre.org
Third Party Advisory
https://security.netapp.com/advisory/ntap-20220222-0004/
Source: cve@mitre.org
Third Party Advisory
https://www.insyde.com/security-pledge
Source: cve@mitre.org
Vendor Advisory
https://www.insyde.com/security-pledge/SA-2022014
Source: cve@mitre.org
Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://security.netapp.com/advisory/ntap-20220222-0004/
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.insyde.com/security-pledge
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.insyde.com/security-pledge/SA-2022014
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.kb.cert.org/vuls/id/796611
Source: af854a3a-2127-422b-91ae-364da2661108

9 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
0.1%
20th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-119

Affected Vendors

insyde siemens netapp

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