CVE-2021-26402
Severity CVSS v4.0:
Pending analysis
Type:
CWE-787
Out-of-bounds Write
Publication date:
11/01/2023
Last modified:
08/04/2025
Description
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.<br />
<br />
Impact
Base Score 3.x
7.10
Severity 3.x
HIGH
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:o:amd:epyc_7h12_firmware:*:*:*:*:*:*:*:* | romepi_1.0.0.c (excluding) | |
| cpe:2.3:h:amd:epyc_7h12:-:*:*:*:*:*:*:* | ||
| cpe:2.3:o:amd:epyc_7f72_firmware:*:*:*:*:*:*:*:* | romepi_1.0.0.c (excluding) | |
| cpe:2.3:h:amd:epyc_7f72:-:*:*:*:*:*:*:* | ||
| cpe:2.3:o:amd:epyc_7f52_firmware:*:*:*:*:*:*:*:* | romepi_1.0.0.c (excluding) | |
| cpe:2.3:h:amd:epyc_7f52:-:*:*:*:*:*:*:* | ||
| cpe:2.3:o:amd:epyc_7f32_firmware:*:*:*:*:*:*:*:* | romepi_1.0.0.c (excluding) | |
| cpe:2.3:h:amd:epyc_7f32:-:*:*:*:*:*:*:* | ||
| cpe:2.3:o:amd:epyc_7742_firmware:*:*:*:*:*:*:*:* | romepi_1.0.0.c (excluding) | |
| cpe:2.3:h:amd:epyc_7742:-:*:*:*:*:*:*:* | ||
| cpe:2.3:o:amd:epyc_7702p_firmware:*:*:*:*:*:*:*:* | romepi_1.0.0.c (excluding) | |
| cpe:2.3:h:amd:epyc_7702p:-:*:*:*:*:*:*:* | ||
| cpe:2.3:o:amd:epyc_7702_firmware:*:*:*:*:*:*:*:* | romepi_1.0.0.c (excluding) | |
| cpe:2.3:h:amd:epyc_7702:-:*:*:*:*:*:*:* | ||
| cpe:2.3:o:amd:epyc_7662_firmware:*:*:*:*:*:*:*:* | romepi_1.0.0.c (excluding) |
To consult the complete list of CPE names with products and versions, see this page