---
cve: "CVE-2021-46759"
severity: "MEDIUM"
cvss: 6.1
epss: "28%"
vendor: "AMD"
kev: false
exploited: false
published: "2023-05-09 20:15:12"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-12T03:20:43+02:00"
---

# CVE-2021-46759

> 6.1 MEDIUM

## Beschreibung

Improper syscall input validation in AMD TEE
(Trusted Execution Environment) may allow an attacker with physical access and
control of a Uapp that runs under the bootloader to reveal the contents of the
ASP (AMD Secure Processor) bootloader accessible memory to a serial port,
resulting in a potential loss of integrity.

## CVSS-Vektor

```
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Physisch | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Keine | good |

## Referenzen

- <https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2021-46759) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_