How severe is CVE-2021-46746?

CVE-2021-46746 has a CVSS 3.x base score of 5.2, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability high.

Is CVE-2021-46746 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2021-46746?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2021-46746 have an EU (EUVD) identifier?

Yes. CVE-2021-46746 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-33402.

When was CVE-2021-46746 published?

CVE-2021-46746 was published on 2024-08-13 and last updated on 2026-06-17.

CVE-2021-46746

CVE-2021-46746 is a medium-severity vulnerability with a CVSS 3.x base score of 5.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.

Key facts

Severity: Medium (CVSS 3.x base score 5.2)
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2021-33402
Weakness: CWE-120
Published: 2024-08-13
Last modified: 2026-06-17

Description

Lack of stack protection exploit mechanisms in ASP Secure OS Trusted Execution Environment (TEE) may allow a privileged attacker with access to AMD signing keys to c006Frrupt the return address, causing a stack-based buffer overrun, potentially leading to a denial of service.

Frequently asked questions

What is CVE-2021-46746?: Lack of stack protection exploit mechanisms in ASP Secure OS Trusted Execution Environment (TEE) may allow a privileged attacker with access to AMD signing keys to c006Frrupt the return address, causing a stack-based buffer overrun, potentially leading to a denial of service.
How severe is CVE-2021-46746?: CVE-2021-46746 has a CVSS 3.x base score of 5.2, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability high.
Is CVE-2021-46746 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2021-46746?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2021-46746 have an EU (EUVD) identifier?: Yes. CVE-2021-46746 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-33402.
When was CVE-2021-46746 published?: CVE-2021-46746 was published on 2024-08-13 and last updated on 2026-06-17.

References

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3003.html

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