CVE-2021-26344

Aug. 13, 2024, 5:15 p.m.

7.2
High

Description

An out of bounds memory write when processing the AMD PSP1 Configuration Block (APCB) could allow an attacker with access the ability to modify the BIOS image, and the ability to sign the resulting image, to potentially modify the APCB block resulting in arbitrary code execution.

Product(s) Impacted

Product Versions
AMD BIOS Firmware
  • []

Weaknesses

Common security weaknesses mapped to this vulnerability.

References

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3003.html

Tags

psirt@amd.com
2024-08-13
CVE-2021-26344

CVSS Score

7.2 / 10

CVSS Data - 3.1

  • Attack Vector: LOCAL
  • Attack Complexity: HIGH
  • Privileges Required: HIGH
  • Scope: CHANGED
  • Confidentiality Impact: HIGH
  • Integrity Impact: HIGH
  • Availability Impact: HIGH

    • CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H

    View Vector String

Timeline

Published: Aug. 13, 2024, 5:15 p.m.
Last Modified: Aug. 13, 2024, 5:15 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

psirt@amd.com

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.