CVE-2021-26387

lowpriority · track · 0OT risk · elevatedEPSS 0.001 · 4 %ileDEEU

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.15% (4th) EPSS

CVSS 3.9 · low

Is it mine?

47 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · cert_bund

EPSS · scored 2026-10-27

Insufficient access controls in ASP kernel may allow a privileged attacker with access to AMD signing keys and the BIOS menu or UEFI shell to map DRAM regions in protected areas, potentially leading to a loss of platform integrity.

cvss

Technical severity, 0–10. One row per scoring source.

3.9

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.13.9lowCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:Lsecondary · ENISA EU

v3.13.9lowCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:Lsecondary · psirt@amd.comexploitability 0.8 · impact 2.7

v3.13.6lowCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-863US

affected products (47)

Products and version ranges known to be affected.

AMD Prozessor Athlonall versionscert_bundDEcpe:/h:amd:amd_processor:athlon
AMD Prozessor EPYCall versionscert_bundDEcpe:/h:amd:amd_processor:epyc
AMD Prozessor Ryzenall versionscert_bundDEcpe:/h:amd:amd_processor:ryzen
AMD Radeonall versionscert_bundDEcpe:/h:amd:radeon:-
Dell Computerall versionscert_bundDEcpe:/o:dell:dell_computer:-
Dell PowerEdgeall versionscert_bundDEcpe:/h:dell:poweredge:-
HP Computerall versionscert_bundDEcpe:/h:hp:computer:-
IBM Power Hardware Management Console V10all versionscert_bundDEcpe:/a:ibm:hardware_management_console:v10
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
AMD AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics< ComboAM4PI 1.0.0.9enisa_euvdEU
AMD AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics< ComboAM4v2 PI 1.2.0.8enisa_euvdEU
AMD AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics< PicassoPI-FP5 1.0.0.Eenisa_euvdEU
AMD AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics< PollockPI-FT5 1.0.0.4enisa_euvdEU
AMD AMD EPYC™ 7001 Series Processorsall versionsenisa_euvdEU
AMD AMD EPYC™ 7002 Series Processorsall versionsenisa_euvdEU
AMD AMD EPYC™ 7003 Series Processorsall versionsenisa_euvdEU
AMD AMD EPYC™ 9004 Series Processorsall versionsenisa_euvdEU
AMD AMD EPYC™ Embedded 3000 Series Processorsall versionsenisa_euvdEU

showing 20 of 47

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-1837AMD Prozessoren: Mehrere SchwachstellenDeutsch2024-08-13csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in AMD Prozessor und AMD Radeon ausnutzen, um beliebigen Programmcode auszuführen, erhöhte Rechte zu erlangen, einen Denial-of-Service-Zustand zu erzeugen, Daten zu manipulieren, Sicherheitsmaßnahmen zu umgehen und vertrauliche Informationen preiszugeben.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund NVD CVE.org MITRE

published 2024-08-13modified 2026-06-17

references (8)

External citations — patches, advisories, analysis.

scry

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