CVE-2021-46771
HIGHCVSS 7.8/10EPSS 0.28%
Last modified
CVE-2021-46771 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Insufficient validation of addresses in AMD Secure Processor (ASP) firmware system call may potentially lead to arbitrary code execution by a compromised user application.. EPSS estimates a 0.28% chance of exploitation in the next 30 days.
Description
Insufficient validation of addresses in AMD Secure Processor (ASP) firmware system call may potentially lead to arbitrary code execution by a compromised user application.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Amd | Epyc 7763 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7713p Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7713 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7663 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7643 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 75f3 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7543p Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7543 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7513 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7453 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 74f3 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7443p Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7443 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7413 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 73f3 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7343 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7313p Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7313 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 72f3 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7773x Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7473x Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7573x Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7373x Firmware | < milanpi-sp3_1.0.0.4 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-46771?
Insufficient validation of addresses in AMD Secure Processor (ASP) firmware system call may potentially lead to arbitrary code execution by a compromised user application.
How severe is CVE-2021-46771?
CVE-2021-46771 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.28% probability of exploitation in the next 30 days.
How do I fix CVE-2021-46771?
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-2021-46764Improper 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-2021-46766Improper clearing of sensitive data in the ASP Bootloader ma…5.5
- 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-2021-46772Insufficient input validation in the ABL may allow a privile…3.9
- CVE-2021-46773Insufficient input validation in ABL may enable a privileged…8.8
- CVE-2021-46774Insufficient DRAM address validation in System Management Un…7.5
- CVE-2021-46775Improper input validation in ABL may enable an attacker with…6.8
- CVE-2021-46778Execution unit scheduler contention may lead to a side chann…5.6
- CVE-2021-46779Insufficient input validation in SVC_ECC_PRIMITIVE system ca…7.1
Are you affected by CVE-2021-46771?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST