8.2

CVE-2021-41837

An issue was discovered in AhciBusDxe in the kernel 5.0 through 5.5 in Insyde InsydeH2O. Because of an Untrusted Pointer Dereference that causes SMM memory corruption, an attacker may be able 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 < 5.08.41
Insyde ≫ Insydeh2o Version >= 5.1 < 5.16.41
Insyde ≫ Insydeh2o Version >= 5.2 < 5.26.41
Insyde ≫ Insydeh2o Version >= 5.3 < 5.35.41
Insyde ≫ Insydeh2o Version >= 5.4 < 5.43.41
Insyde ≫ Insydeh2o Version >= 5.5 < 5.51.41
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.07% 0.177
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-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.