CVE-2021-26381

mediumpriority · track · 0EPSS 0.002 · 6 %ileDEEURU

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.16% (6th) EPSS

CVSS 6.4 · medium

Is it mine?

55 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

Improper system call parameter validation in the Trusted OS may allow a malicious driver to perform mapping or unmapping operations on a large number of pages, potentially resulting in kernel memory corruption.

cvss

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

7.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4–7.1

v3.16.4mediumAV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v4.07.1highCVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.07.1highCVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · psirt@amd.com

v4.04mediumCVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

ssvc

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

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-770USCWE-770US

affected products (55)

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 EPYC Embeddedall versionscert_bundDEcpe:/h:amd:amd_processor:epyc_embedded
AMD Prozessor Ryzenall versionscert_bundDEcpe:/h:amd:amd_processor:ryzen
Dell Computerall versionscert_bundDEcpe:/o:dell:dell_computer:-
Dell PowerEdgeall versionscert_bundDEcpe:/h:dell:poweredge:-
HP Computerall versionscert_bundDEcpe:/h:hp:computer:-
HPE ProLiantall versionscert_bundDEcpe:/h:hp:proliant:-
Lenovo Computerall versionscert_bundDEcpe:/h:lenovo:computer:-
AMD AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics< PicassoPI-FP5 1.0.0.Eenisa_euvdEU
AMD AMD Radeon™ PRO V520< Contact Your AMD Customer Engineering Represenatativeenisa_euvdEU
AMD AMD Radeon™ PRO V620< Contact Your AMD Customer Engineering Represenatativeenisa_euvdEU
AMD AMD Radeon™ PRO W5000 Series Graphics Products< AMD Software: Adrenalin Edition 25.4.1 (24.30.31.08), AMD Software: PRO Edition 25.Q2(25.10.10)enisa_euvdEU
AMD AMD Radeon™ PRO W6000 Series Graphics Products< AMD Software: Adrenalin Edition 25.4.1 (24.30.31.08), AMD Software: PRO Edition 25.Q2(25.10.10)enisa_euvdEU
AMD AMD Radeon™ RX 5000 Series Graphics Products< AMD Software: Adrenalin Edition 25.4.1 (24.30.31.08), AMD Software: PRO Edition 25.Q2(25.10.10)enisa_euvdEU
AMD AMD Radeon™ RX 6000 Series Graphics Products< AMD Software: Adrenalin Edition 25.4.1 (24.30.31.08), AMD Software: PRO Edition 25.Q2(25.10.10)enisa_euvdEU
AMD AMD Ryzen™ 3000 Series Desktop Processors< ComboAM4PI 1.0.0.9/ ComboAM4 V2 PI 1.2.0.8enisa_euvdEU
AMD AMD Ryzen™ 4000 Series Desktop Processors< ComboAM4v2 PI 1.2.0.5enisa_euvdEU
AMD AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics< RenoirPI-FP6 1.0.0.8enisa_euvdEU
AMD AMD Ryzen™ 5000 Series Desktop Processors< ComboAM4 V2 PI 1.2.0.8enisa_euvdEU

showing 20 of 55

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-0381AMD EPYC, Athlon und Ryzen Prozessoren: Mehrere SchwachstellenDeutsch2026-02-10csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in AMD Prozessor ausnutzen, um beliebigen Code auszuführen, sich erhöhte Berechtigungen zu verschaffen, Sicherheitsmaßnahmen zu umgehen, einen Denial-of-Service-Zustand herbeizuführen, vertrauliche Informationen offenzulegen oder Daten zu manipulieren.
WID-SEC-W-2026-0383AMD Radeon: Mehrere SchwachstellenDeutsch2026-02-10csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in AMD Radeon ausnutzen, um sich erweiterte Berechtigungen zu verschaffen, beliebigen Code auszuführen, einen Denial-of-Service-Zustand herbeizuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen und Daten zu manipulieren.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2026-02-10modified 2026-06-17

references (6)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan