CVE-2023-20573

Debug Exception Delivery in Secure Nested Paging

LOW

3.2

CVSS Score

Published: January 11, 2024 at 01:53 PM UTC

Updated: June 17, 2026 at 05:30 AM UTC

132 products affected across 1 vendorEpyc 7663 FirmwareEpyc 7713P FirmwareEpyc 7413 Firmware

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Severity

LOW3.2

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

Description

A privileged attacker can prevent delivery of debug exceptions to SEV-SNP guests potentially resulting in guests not receiving expected debug information.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Epyc 7203 Firmware · AMD

95%

All versions

amd-epyc-7203 (same device)

Epyc 7203P Firmware · AMD

95%

All versions

amd-epyc-7203p (same device)

Epyc 72F3 Firmware · AMD

95%

All versions

amd-epyc-72f3 (same device)

Epyc 7303 Firmware · AMD

95%

All versions

amd-epyc-7303 (same device)

Epyc 7303P Firmware · AMD

95%

All versions

amd-epyc-7303p (same device)

Epyc 7313 Firmware · AMD

95%

All versions

amd-epyc-7313 (same device)

Epyc 7313P Firmware · AMD

95%

All versions

amd-epyc-7313p (same device)

Epyc 7343 Firmware · AMD

95%

All versions

amd-epyc-7343 (same device)

Epyc 7373X Firmware · AMD

95%

All versions

amd-epyc-7373x (same device)

Epyc 73F3 Firmware · AMD

95%

All versions

amd-epyc-73f3 (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3006

References (1)

Vendor Advisory

Source: [email protected]

https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3006

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.2LOWCISA-ADP

Attack Vector: LOCAL
Complexity: LOW
Privileges: HIGH
User Interaction: NONE
Scope: CHANGED
Confidentiality: NONE
Integrity: LOW
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

NVD-CWE-noinfoCWE-693

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