Description
An issue was discovered in Insyde InsydeH2O with kernel 5.1 through 2021-11-08, 5.2 through 2021-11-08, and 5.3 through 2021-11-08. A StorageSecurityCommandDxe SMM memory corruption vulnerability allows an attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.
References (4)
Core 4
Core References
Vendor Advisory x_refsource_misc
https://www.insyde.com/security-pledge
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20220216-0003/
Third Party Advisory x_refsource_confirm
https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf
Third Party Advisory, US Government Resource
https://www.kb.cert.org/vuls/id/796611
Scores
CVSS v3
7.5
EPSS
0.0026
EPSS Percentile
17.8%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Details
CWE
CWE-787
Status
published
Products (1)
insyde/insydeh2o
5.1 - 5.14.34
Published
Feb 03, 2022
Tracked Since
Feb 18, 2026