CVE-2021-46766
MEDIUMCVSS 5.5/10EPSS 0.23%
Last modified
CVE-2021-46766 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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.. EPSS estimates a 0.23% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| 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 |
| Amd | Epyc 9454 Firmware | < genoapi_1.0.0.4 |
| Amd | Epyc 9374f Firmware | < genoapi_1.0.0.4 |
| Amd | Epyc 9354p Firmware | < genoapi_1.0.0.4 |
| Amd | Epyc 9354 Firmware | < genoapi_1.0.0.4 |
| Amd | Epyc 9334 Firmware | < genoapi_1.0.0.4 |
| Amd | Epyc 9274f Firmware | < genoapi_1.0.0.4 |
| Amd | Epyc 9254 Firmware | < genoapi_1.0.0.4 |
| Amd | Epyc 9224 Firmware | < genoapi_1.0.0.4 |
| Amd | Epyc 9174f Firmware | < genoapi_1.0.0.4 |
| Amd | Epyc 9124 Firmware | < genoapi_1.0.0.4 |
| Amd | Epyc 9684x Firmware | < genoapi_1.0.0.4 |
| Amd | Epyc 9384x Firmware | < genoapi_1.0.0.4 |
| Amd | Epyc 9184x Firmware | < genoapi_1.0.0.4 |
| Amd | Epyc 9754 Firmware | < genoapi_1.0.0.4 |
| Amd | Epyc 9754s Firmware | < genoapi_1.0.0.4 |
| Amd | Epyc 9734 Firmware | < genoapi_1.0.0.4 |
| Amd | Ryzen Threadripper Pro 3995wx Firmware | < chagallwspi-swrx8_1.0.0.5 |
| Amd | Ryzen Threadripper Pro 3975wx Firmware | < chagallwspi-swrx8_1.0.0.5 |
| Amd | Ryzen Threadripper Pro 3955wx Firmware | < chagallwspi-swrx8_1.0.0.5 |
| Amd | Ryzen Threadripper Pro 3945wx Firmware | < chagallwspi-swrx8_1.0.0.5 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-46766?
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.
How severe is CVE-2021-46766?
CVE-2021-46766 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.
How do I fix CVE-2021-46766?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-46760A malicious or compromised UApp or ABL can send a malformed …9.8
- CVE-2021-46761Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultID…
- CVE-2021-46762Insufficient input validation in the SMU may allow an attack…9.1
- CVE-2021-46763Insufficient input validation in the SMU may enable a privil…7.5
- CVE-2021-46764Improper validation of DRAM addresses in SMU may allow an at…7.5
- CVE-2021-46765Insufficient input validation in ASP may allow an attacker w…7.5
- CVE-2021-46767Insufficient input validation in the ASP may allow an attack…6.1
- CVE-2021-46768Insufficient input validation in SEV firmware may allow an a…5.5
- CVE-2021-46769Insufficient syscall input validation in the ASP Bootloader …8.8
- CVE-2021-46771Insufficient validation of addresses in AMD Secure Processor…7.8
- CVE-2021-46772Insufficient input validation in the ABL may allow a privile…3.9
- CVE-2021-46773Insufficient input validation in ABL may enable a privileged…8.8
Are you affected by CVE-2021-46766?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST