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Vulnerability record · CVE-2021-26393 · published 9 November 2022

CVE-2021-26393: Amd enterprise driver memory leak vulnerability

AAmd · Enterprise Driver

Insufficient memory cleanup in the AMD Secure Processor (ASP) Trusted Execution Environment (TEE) may allow an authenticated attacker with privileges to generate a valid signed TA and potentially poison the contents of the process memory with attacker controlled data resulting in a loss of confidentiality.

5.5 CVSS 3.1 Medium EPSS 0.26% · top 84.4% CWE-401 · Memory leak
5.5CVSS 3.1 base score
0.26%EPSS exploitation probability, 30 days
NoNot in CISA KEV
67Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

Insufficient memory cleanup in the AMD Secure Processor (ASP) Trusted Execution Environment (TEE) may allow an authenticated attacker with privileges to generate a valid signed TA and potentially poison the contents of the process memory with attacker controlled data resulting in a loss of confidentiality.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

67 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1029 Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-5001
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1029 Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-5001

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-26393), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.