CVE-2021-26344

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…

High · published August 13, 2024

CVSS v3.1
7.2
EPSS
0%
Percentile
4.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.2 · HIGH
Vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00161 · 4.9th percentile
Published
2024-08-13T16:49Z
EPSS history
Timeline
  • 13 AUG 16:49Z
    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…
    cvelistv5