What’s Vulnerable › Vulnerabilities

CVE-2023-20556:

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-08-08 · updated 2026-06-17

Description

Insufficient validation of the IOCTL (Input Output Control) input buffer in AMD μProf may allow an authenticated user to send an arbitrary buffer potentially resulting in a Windows crash leading to denial of service.

Affected products

• AMD μProf: before 4.1.396; before 4.1-424 — fixed in 4.1-424, 4.1.396

How to fix

Upgrade to a fixed version: AMD μProf 4.1-424, 4.1.396. Check the vendor advisory for mitigations.

References

• https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-7003
• https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-7003

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