CVE-2021-46759

Improper syscall input validation in AMD TEE (Trusted Execution Environment) may allow an...

6.1 Medium

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.

Attack profile

How easy it is to exploit

Attack vector: Physical
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: None

Exploit likelihood

0.28%Up 0.2 points since May 10, 2023

What each source reports

NVD Score used 6.1

Record: CVE-2021-46759
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-787
Updated: 2026-11-02

CVE List 6.1

Record: CVE-2021-46759
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-787
Updated: 2026-11-02

EUVDEUVD-2021-33415 6.1

Record: EUVD-2021-33415
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Updated: 2026-11-03

GitHub AdvisoriesGHSA-gp8r-64c4-ggqw 6.1

Improper syscall input validation in AMD TEE (Trusted Execution Environment) may allow an...

Record: GHSA-gp8r-64c4-ggqw
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-787
Updated: 2026-11-02

Affected products

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History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases, published	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-46759 is a medium vulnerability (CVSS 6.1) in Amd Athlon Gold 3150g Firmware, published May 9, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.28%, the 21st percentile. No source names a fixed version.