How severe is CVE-2021-46747?

CVE-2021-46747 has a CVSS 4.0 base score of 7.1, rated high severity.

Is CVE-2021-46747 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2021-46747?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2021-46747 have an EU (EUVD) identifier?

Yes. CVE-2021-46747 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-34843.

When was CVE-2021-46747 published?

CVE-2021-46747 was published on 2026-06-01 and last updated on 2026-06-17.

CVE-2021-46747

CVE-2021-46747 is a high-severity vulnerability with a CVSS 4.0 base score of 7.1. 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-1220.

Key facts

Severity: High (CVSS 4.0 base score 7.1)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2021-34843
Weakness: CWE-1220
Published: 2026-06-01
Last modified: 2026-06-17

Description

Insufficient granularity of access control in ASP (AMD Secure Processor) may allow an attacker with an untrusted user space application to map sensitive SMN (System Management Network) apertures leading to a potential escalation of privileges.

Frequently asked questions

What is CVE-2021-46747?: Insufficient granularity of access control in ASP (AMD Secure Processor) may allow an attacker with an untrusted user space application to map sensitive SMN (System Management Network) apertures leading to a potential escalation of privileges.
How severe is CVE-2021-46747?: CVE-2021-46747 has a CVSS 4.0 base score of 7.1, rated high severity.
Is CVE-2021-46747 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2021-46747?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2021-46747 have an EU (EUVD) identifier?: Yes. CVE-2021-46747 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-34843.
When was CVE-2021-46747 published?: CVE-2021-46747 was published on 2026-06-01 and last updated on 2026-06-17.

References

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