How severe is CVE-2023-20584?

CVE-2023-20584 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2023-20584 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-20584?

CVE-2023-20584 primarily affects Amd Epyc 8024pn Firmware. In total, 65 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-20584?

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

Does CVE-2023-20584 have an EU (EUVD) identifier?

Yes. CVE-2023-20584 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-24763.

When was CVE-2023-20584 published?

CVE-2023-20584 was published on 2024-08-13 and last updated on 2026-06-17.

CVE-2023-20584

CVE-2023-20584 is a medium-severity vulnerability in Amd Epyc 8024pn Firmware with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-24763
Affected product: Amd Epyc 8024pn Firmware
Published: 2024-08-13
Last modified: 2026-06-17

Description

IOMMU improperly handles certain special address ranges with invalid device table entries (DTEs), which may allow an attacker with privileges and a compromised Hypervisor to induce DTE faults to bypass RMP checks in SEV-SNP, potentially leading to a loss of guest integrity.

Frequently asked questions

What is CVE-2023-20584?: IOMMU improperly handles certain special address ranges with invalid device table entries (DTEs), which may allow an attacker with privileges and a compromised Hypervisor to induce DTE faults to bypass RMP checks in SEV-SNP, potentially leading to a loss of guest integrity.
How severe is CVE-2023-20584?: CVE-2023-20584 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2023-20584 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-20584?: CVE-2023-20584 primarily affects Amd Epyc 8024pn Firmware. In total, 65 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-20584?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-20584 have an EU (EUVD) identifier?: Yes. CVE-2023-20584 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-24763.
When was CVE-2023-20584 published?: CVE-2023-20584 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

Affected products (65)

cpe:2.3:o:amd:epyc_8024pn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8024p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8124pn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8124p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8224pn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8224p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8324pn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8324p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8434pn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8434p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8534pn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8534p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_9734_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_9754s_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_9754_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_9184x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_9384x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_9684x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_9124_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_9174f_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_9224_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_9254_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_9274f_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_9334_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_9354_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_9354p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_9374f_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_9454_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_9454p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_9474f_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_9534_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_9554_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_9554p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_9634_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_9654_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_9654p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7203_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7203p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_72f3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7303_firmware:*:*:*:*:*:*:*:*

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