8.2

CVE-2021-42554

An issue was discovered in Insyde InsydeH2O with Kernel 5.0 before 05.08.42, Kernel 5.1 before 05.16.42, Kernel 5.2 before 05.26.42, Kernel 5.3 before 05.35.42, Kernel 5.4 before 05.42.51, and Kernel 5.5 before 05.50.51. An SMM memory corruption vulnerability in FvbServicesRuntimeDxe allows a possible attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.

Data is provided by the National Vulnerability Database (NVD)
Insyde ≫ Insydeh2o Version >= 5.0 < 5.08.42
Insyde ≫ Insydeh2o Version >= 5.1 < 5.16.42
Insyde ≫ Insydeh2o Version >= 5.2 < 5.26.42
Insyde ≫ Insydeh2o Version >= 5.3 < 5.35.42
Insyde ≫ Insydeh2o Version >= 5.4 < 5.42.51
Insyde ≫ Insydeh2o Version >= 5.5 < 5.50.51
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.05% 0.14
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.