7.5

CVE-2021-43522

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.

Data is provided by the National Vulnerability Database (NVD)
Insyde ≫ Insydeh2o Version >= 5.1 < 5.14.34
Insyde ≫ Insydeh2o Version >= 5.2 < 5.24.34
Insyde ≫ Insydeh2o Version >= 5.3 < 5.33.34
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.06% 0.181
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 7.5 0.8 6
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
nvd@nist.gov 6.9 3.4 10
AV:L/AC:M/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.