CVE Vulnerability

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.

7.2 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

8.2 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.5 / Impact : 6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References
Link Resource
https://www.insyde.com/security-pledge Vendor Advisory
https://www.insyde.com/security-pledge/SA-2022012 Vendor Advisory
https://security.netapp.com/advisory/ntap-20220216-0007/ Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*
cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*
cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*
cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*
cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*
cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*
Information

Published : 2022-02-03 02:15

Updated : 2022-03-08 08:18

NVD link : CVE-2021-42554

Mitre link : CVE-2021-42554

Products Affected

Siemens

Simatic Field Pg M5 Firmware

CWE
CWE-787