CVE-2023-27373

EUVD-2023-31149
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. Due to insufficient input validation, an attacker can tamper with a runtime-accessible EFI variable to cause a dynamic BAR setting to overlap SMRAM.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CISA-ADPADP
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 15%
Affected Products (NVD)
VendorProductVersion
insydeinsydeh2o
5.0
insydeinsydeh2o
5.1
insydeinsydeh2o
5.2
insydeinsydeh2o
5.3
insydeinsydeh2o
5.4
insydeinsydeh2o
5.5
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://www.insyde.com/security-pledge/SA-2023035
https://www.insyde.com/security-pledge/SA-2023035