CVE-2021-26353

highpriority · track · 31EPSS 0.003 · 19 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.27% (19th) EPSS

CVSS 7.2 · high

Is it mine?

35 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

Failure to validate inputs in SMM may allow an attacker to create a mishandled error leaving the DRTM UApp in a partially initialized state potentially resulting in loss of memory integrity.

cvss

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

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.8–7.8

v2.07.2highAV:L/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 3.9 · impact 10

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.15.8mediumAV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:Nsecondary · FSTEC (BDU) RU

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-665USprimaryCWE-20US

affected products (35)

Products and version ranges known to be affected.

AMD Prozessorall versionscert_bundDEcpe:/h:amd:amd_processor:-
Dell Computerall versionscert_bundDEcpe:/o:dell:dell_computer:-
HP Computerall versionscert_bundDEcpe:/h:hp:computer:-
HPE ProLiantall versionscert_bundDEcpe:/h:hp:proliant:-
Lenovo BIOSall versionscert_bundDEcpe:/h:lenovo:bios:-
Lenovo Computerall versionscert_bundDEcpe:/o:lenovo:lenovo_computer:-
AMD 3rd Gen EPYCall versionsenisa_euvdEU
Advanced Micro Devices Inc. 3rd Gen AMD EPYC≤ MilanPI 1.0.0.4fstec_bduRU
Lenovo Group Limited SR635≤ CFE134Hfstec_bduRU
Lenovo Group Limited SR645≤ D8E128Ffstec_bduRU
Lenovo Group Limited SR655≤ CFE134Hfstec_bduRU
Lenovo Group Limited SR665≤ D8E128Ffstec_bduRU
amd epyc 72f3 firmware< milanpi-sp3_1.0.0.4nvdUScpe:2.3:o:amd:epyc_72f3_firmware:*:*:*:*:*:*:*:*
amd epyc 7313 firmware< milanpi-sp3_1.0.0.4nvdUScpe:2.3:o:amd:epyc_7313_firmware:*:*:*:*:*:*:*:*
amd epyc 7313p firmware< milanpi-sp3_1.0.0.4nvdUScpe:2.3:o:amd:epyc_7313p_firmware:*:*:*:*:*:*:*:*
amd epyc 7343 firmware< milanpi-sp3_1.0.0.4nvdUScpe:2.3:o:amd:epyc_7343_firmware:*:*:*:*:*:*:*:*
amd epyc 7373x firmware< milanpi-sp3_1.0.0.4nvdUScpe:2.3:o:amd:epyc_7373x_firmware:*:*:*:*:*:*:*:*
amd epyc 73f3 firmware< milanpi-sp3_1.0.0.4nvdUScpe:2.3:o:amd:epyc_73f3_firmware:*:*:*:*:*:*:*:*
amd epyc 7413 firmware< milanpi-sp3_1.0.0.4nvdUScpe:2.3:o:amd:epyc_7413_firmware:*:*:*:*:*:*:*:*
amd epyc 7443 firmware< milanpi-sp3_1.0.0.4nvdUScpe:2.3:o:amd:epyc_7443_firmware:*:*:*:*:*:*:*:*

showing 20 of 35

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-0061AMD Prozessoren: Mehrere SchwachstellenDeutsch2023-01-10csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in AMD Prozessoren ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand zu verursachen und Daten zu manipulieren.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd NVD CVE.org MITRE

published 2022-05-10modified 2026-06-17

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+654 more

references (5)

External citations — patches, advisories, analysis.

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