Description
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. The SMI handler for the FwBlockServiceSmm driver uses an untrusted pointer as the location to copy data to an attacker-specified buffer, leading to information disclosure.
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-2022-018/index.html
Vendor Advisory x_refsource_misc
https://www.insyde.com/security-pledge/SA-2022030
Scores
CVSS v3
6.0
EPSS
0.0031
EPSS Percentile
22.3%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-401
Status
published
Products (1)
insyde/insydeh2o
5.0 - 05.09.37
Published
Sep 22, 2022
Tracked Since
Feb 18, 2026