CVE-2021-26383

highpriority · track · 0EPSS 0.002 · 6 %ileDEEU

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.17% (6th) EPSS

CVSS 7.9 · high

Is it mine?

25 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · cert_bund

EPSS · scored 2026-10-27

Insufficient bounds checking in AMD TEE (Trusted Execution Environment) could allow an attacker with a compromised userspace to invoke a command with malformed arguments leading to out of bounds memory access, potentially resulting in loss of integrity or availability.

cvss

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

7.9

010

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

v3.17.9highCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:Hsecondary · ENISA EU

v3.17.9highCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:Hsecondary · psirt@amd.comexploitability 1.5 · impact 5.8

v3.17.2highCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H/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-787US

affected products (25)

Products and version ranges known to be affected.

AMD Prozessor EPYCall versionscert_bundDEcpe:/h:amd:amd_processor:epyc
AMD Prozessor EPYC 7272 CPU on SEVall versionscert_bundDEcpe:/h:amd:amd_processor:epyc_7272_cpu_on_sev
AMD Prozessor Ryzenall versionscert_bundDEcpe:/h:amd:amd_processor:ryzen
AMD Radeon graphics productsall versionscert_bundDEcpe:/h:amd:radeon:graphics_products
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Dell Computerall versionscert_bundDEcpe:/o:dell:dell_computer:-
Dell PowerEdgeall versionscert_bundDEcpe:/h:dell:poweredge:-
HP Computerall versionscert_bundDEcpe:/h:hp:computer:-
Lenovo Computerall versionscert_bundDEcpe:/h:lenovo:computer:-
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
AMD AMD Instinct™ MI210< ROCm 6.4enisa_euvdEU
AMD AMD Instinct™ MI250< ROCm 6.4enisa_euvdEU
AMD AMD Radeon™ PRO V520 Graphics Products< Contact your AMD Customer Engineering representativeenisa_euvdEU
AMD AMD Radeon™ PRO V620 Graphics Products< Contact your AMD Customer Engineering representativeenisa_euvdEU
AMD AMD Radeon™ PRO W5000 Series Graphics Products< AMD Software: PRO Edition 23.Q1 (22.40.37.05)enisa_euvdEU
AMD AMD Radeon™ PRO W6000 Series Graphics Products< AMD Software: PRO Edition 23.Q1 (22.40.37.05)enisa_euvdEU
AMD AMD Radeon™ RX 5000 Series Graphics Products< AMD Software: Adrenalin Edition 23.2.1 (22.40.01.45)enisa_euvdEU
AMD AMD Radeon™ RX 6000 Series Graphics Products< AMD Software: Adrenalin Edition 23.2.1 (22.40.01.45)enisa_euvdEU
AMD AMD Ryzen™ 4000 Series Desktop Processors< ComboAM4v2 PI 1.2.0.5enisa_euvdEU

showing 20 of 25

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-1767AMD Radeon Graphics Products: Mehrere SchwachstellenDeutsch2025-08-12csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in AMD Radeon ausnutzen, um sich erhöhte Privilegien zu verschaffen, beliebigen Code auszuführen, einen Denial of Service-Zustand herbeizuführen, Daten zu manipulieren, vertrauliche Informationen offenzulegen oder nicht näher spezifizierte Angriffe durchzuführen.
WID-SEC-W-2025-1770AMD Prozessoren: Mehrere SchwachstellenDeutsch2025-08-12csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in AMD Prozessoren ausnutzen, um Sicherheitsmaßnahmen zu umgehen, erweiterte Privilegien zu erlangen, beliebigen Code auszuführen, einen Denial-of-Service-Zustand zu verursachen, Daten zu manipulieren, vertrauliche Informationen offenzulegen oder nicht näher spezifizierte Angriffe durchzuführen.

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 2025-09-06modified 2026-06-17

references (9)

External citations — patches, advisories, analysis.

scry

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