Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2021-42554 First vendor Publication 2022-02-03
Vendor Cve Last vendor Modification 2024-11-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Overall CVSS Score 8.2
Base Score 8.2 Environmental Score 8.2
impact SubScore 6 Temporal Score 8.2
Exploitabality Sub Score 1.5
 
Attack Vector Local Attack Complexity Low
Privileges Required High User Interaction None
Scope Changed Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:C/I:C/A:C)
Cvss Base Score 7.2 Attack Range Local
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42554

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-787 Out-of-bounds Write (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 40
Os 1

Sources (Detail)

https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf
https://security.netapp.com/advisory/ntap-20220216-0007/
https://www.insyde.com/security-pledge
https://www.insyde.com/security-pledge/SA-2022012
Source Url

Alert History

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Date Informations
2024-11-28 14:01:49
  • Multiple Updates
2023-11-10 13:15:33
  • Multiple Updates
2023-11-10 02:17:22
  • Multiple Updates
2023-08-23 02:14:15
  • Multiple Updates
2023-08-16 02:09:13
  • Multiple Updates
2023-08-15 02:09:15
  • Multiple Updates
2022-03-09 00:23:11
  • Multiple Updates
2022-02-24 21:23:09
  • Multiple Updates
2022-02-17 09:23:07
  • Multiple Updates
2022-02-10 01:51:29
  • Multiple Updates
2022-02-09 09:22:59
  • Multiple Updates
2022-02-05 09:22:57
  • Multiple Updates
2022-02-03 17:22:54
  • Multiple Updates
2022-02-03 09:22:54
  • First insertion