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-2021-26402 First vendor Publication 2023-01-11
Vendor Cve Last vendor Modification 2023-11-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Overall CVSS Score 7.1
Base Score 7.1 Environmental Score 7.1
impact SubScore 5.2 Temporal Score 7.1
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

Insufficient bounds checking in ASP (AMD Secure Processor) firmware while handling BIOS mailbox commands, may allow an attacker to write partially-controlled data out-of-bounds to SMM or SEV-ES regions which may lead to a potential loss of integrity and availability.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26402

CWE : Common Weakness Enumeration

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

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 2
Os 3
Os 2
Os 2
Os 2
Os 2
Os 2
Os 3
Os 2
Os 2
Os 3
Os 3
Os 3
Os 2
Os 3
Os 3
Os 2
Os 2
Os 3
Os 3
Os 3
Os 2
Os 3
Os 3
Os 2
Os 2
Os 3
Os 2
Os 2
Os 3
Os 3
Os 2
Os 3
Os 3
Os 2
Os 3
Os 2
Os 3
Os 2
Os 2
Os 3
Os 3
Os 2
Os 2
Os 3
Os 3
Os 2
Os 2
Os 2
Os 2

Sources (Detail)

Source Url
MISC https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032

Alert History

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Date Informations
2023-11-07 21:30:35
  • Multiple Updates
2023-09-23 02:10:14
  • Multiple Updates
2023-01-19 05:27:20
  • Multiple Updates
2023-01-11 21:27:17
  • Multiple Updates
2023-01-11 13:27:13
  • First insertion