CVE record · CVE-2021-26397

Insufficient address validation, may allow an attacker with a compromised ABL and UApp to corrupt sensitive memory locations potentially resulting in a loss of integrity or availability.

CVSS 7.1 HighEPSS 0.0018 · 7th percentile

Published by the CVE Program (CNA: AMD) at 9 May 2023, 18:36 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
AMD	3rd Gen AMD EPYC™ Package name: AGESA	affected various Other versions: unaffected

Identifiers: CVE-2021-26397
CNA: AMD
Tags: 3rd Gen AMD EPYC™
Published: 9 May 2023
Updated: 28 Jan 2025

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
7.1	High	3.1	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H	ADP (CISA-ADP)

CISA KEV Not listed.
EPSS 0.0018, the 7th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 9 May 2023. New records show when each source confirmed them.

Sources

References from the CNA

www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3001 vendor-advisory

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.