Description
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. The FwBlockSericceSmm driver does not properly validate input parameters for a software SMI routine, leading to memory corruption of arbitrary addresses including SMRAM, and possible arbitrary code execution.
References (3)
Core 3
Core References
Vendor Advisory x_refsource_misc
https://www.insyde.com/security-pledge
Exploit, Third Party Advisory x_refsource_misc
https://binarly.io/advisories/BRLY-2022-024/index.html
Vendor Advisory x_refsource_misc
https://www.insyde.com/security-pledge/SA-2022033
Scores
CVSS v3
8.2
EPSS
0.0035
EPSS Percentile
27.2%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-787
Status
published
Products (1)
insyde/insydeh2o
5.0 - 05.09.37
Published
Sep 21, 2022
Tracked Since
Feb 18, 2026