CVE-2021-26329

MEDIUMCVSS 5.5

5.5

AMD System Management Unit (SMU) may experience an integer overflow when an invalid length is provided which may result in a potential loss of resources.

CVSS v3: 5.5
EG Score: —
EPSS: —
KEV: Not listed

Published

November 16, 2021

Last Modified

November 21, 2024

References (2)

psirt@amdhttps://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1021
af854a3a-2127-422b-91ae-364da2661108https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1021

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 7× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:30 UTCEG score recompute
2026-05-26 07:30 UTCGHSA enrichment
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(4)

What is CVE-2021-26329?

CVE-2021-26329 is a medium vulnerability published on November 16, 2021. AMD System Management Unit (SMU) may experience an integer overflow when an invalid length is provided which may result in a potential loss of resources.

When was CVE-2021-26329 disclosed?

CVE-2021-26329 was first published in the National Vulnerability Database on November 16, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

What is the CVSS score of CVE-2021-26329?

CVE-2021-26329 has a CVSS v3 base score of 5.5 (NVD).

How do I remediate CVE-2021-26329?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-26329, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-26329

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CVE-2021-26329

📅 Published

🔄 Last Modified

🔗 References (2)