CVE-2021-46772

LOW EPSS 7.9%
Published Aug 13, 20241y ago · Modified Jun 17, 20261w ago
3.9 CVSS 3.1
Low
Find Similar
Published Aug 13, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

Description

Insufficient input validation in the ABL may allow a privileged attacker with access to the BIOS menu or UEFI shell to tamper with the structure headers in SPI ROM causing an out of bounds memory read and write, potentially resulting in memory corruption or denial of service.

CVSS Details

Base Score
3.9
Exploitability
0.8
Impact
2.7
Vector string
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L
Attack Vector Local
Attack Complexity High
Privileges Required High
User Interaction None
Scope Changed
Confidentiality None
Integrity Low
Availability Low

Threat Intelligence

EPSS Exploit Probability
7.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-125 Out-of-bounds Read Memory Safety
CWE-787 Out-of-bounds Write Memory Safety

References 3

  • amd.com https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3003.html
  • amd.com https://www.amd.com/en/resources/product-security/bulletin/amd-sb-4004.html
  • amd.com https://www.amd.com/en/resources/product-security/bulletin/amd-sb-5002.html

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.