8.2

CVE-2021-45971

An issue was discovered in SdHostDriver in Insyde InsydeH2O with kernel 5.1 before 05.16.25, 5.2 before 05.26.25, 5.3 before 05.35.25, 5.4 before 05.43.25, and 5.5 before 05.51.25. A vulnerability exists in the SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated buffer pointer (CommBufferData).

Data is provided by the National Vulnerability Database (NVD)
Insyde ≫ Insydeh2o Version >= 5.1 < 5.16.25
Insyde ≫ Insydeh2o Version >= 5.2 < 5.26.25
Insyde ≫ Insydeh2o Version >= 5.3 < 5.35.25
Insyde ≫ Insydeh2o Version >= 5.4 < 5.43.25
Insyde ≫ Insydeh2o Version >= 5.5 < 05.51.25
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.05% 0.151
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 8.2 1.5 6
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
nvd@nist.gov 7.2 3.9 10
AV:L/AC:L/Au:N/C:C/I:C/A:C
CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.