CVE record · CVE-2023-20526

Insufficient input validation in the ASP Bootloader may enable a privileged attacker with physical access to expose the contents of ASP memory potentially leading to a loss of confidentiality.

CVSS 1.9 LowEPSS 0.0031 · 23rd percentile

Published by the CVE Program (CNA: AMD) at 14 Nov 2023, 18:52 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	AMD Ryzen™ Threadripper™ 2000 Series Processors “Colfax” Package name: PI	affected various Other versions: unaffected
AMD	1st Gen AMD EPYC™ Processors Package name: PI	affected various Other versions: unaffected
AMD	2nd Gen AMD EPYC™ Processors Package name: PI	affected various Other versions: unaffected
AMD	3rd Gen AMD EPYC™ Processors Package name: PI	affected various Other versions: unaffected
AMD	AMD EPYC™ Embedded 3000	affected various Other versions: unaffected
AMD	AMD EPYC™ Embedded 7002	affected various Other versions: unaffected
AMD	AMD EPYC™ Embedded 7003	affected various Other versions: unaffected

Identifiers: CVE-2023-20526
CNA: AMD
Tags: AMD Ryzen™ Threadripper™ 2000 Series Processors “Colfax”
1st Gen AMD EPYC™ Processors
2nd Gen AMD EPYC™ Processors
3rd Gen AMD EPYC™ Processors
AMD EPYC™ Embedded 3000
AMD EPYC™ Embedded 7002
AMD EPYC™ Embedded 7003
Published: 14 Nov 2023
Updated: 2 Aug 2024

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
1.9	Low	3.1	CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N	CNA (AMD)

CISA KEV Not listed.
EPSS 0.0031, the 23rd percentile, on 5 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 14 Nov 2023. New records show when each source confirmed them.

Sources

References from the CNA

www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4002 vendor-advisory
www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3002 vendor-advisory
www.amd.com/en/corporate/product-security/bulletin/AMD-SB-5001 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.