CVE-2021-46766

What it is

Improper clearing of sensitive data in the ASP Bootloader may expose secret keys to a privileged attacker accessing ASP SRAM, potentially leading to a loss of confidentiality.

At a glance

Exploitability

Can be exploited locally on the machine with an admin-level account. Limited direct impact.

Exploit odds

0.2% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2023-11-14 19:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 04:15 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.2% in the next 30 days (EPSS).
• Severity: 2.5 LOW (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2023-11-14 19:15 UTC

Last modified

2026-06-17 04:15 UTC

Exploit probability

0.2% · EPSS, next 30 days

Weakness

CWE-459

Record status

Modified

Affected

• Amd Epyc 9654p Firmware < genoapi_1.0.0.4
• Amd Epyc 9654 Firmware < genoapi_1.0.0.4
• Amd Epyc 9634 Firmware < genoapi_1.0.0.4
• Amd Epyc 9554p Firmware < genoapi_1.0.0.4
• Amd Epyc 9554 Firmware < genoapi_1.0.0.4
• Amd Epyc 9534 Firmware < genoapi_1.0.0.4
• Amd Epyc 9474f Firmware < genoapi_1.0.0.4
• Amd Epyc 9454p Firmware < genoapi_1.0.0.4

Attack profile CVSS 3.1 · 2.5

Attack vector

Local

Complexity

High

Privileges needed

High

User interaction

None

Scope

Changed

Confidentiality

Low

Integrity

None

Availability

None

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2021-46766.md and follow it. Check whether this project is affected by CVE-2021-46766. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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