CVE-2021-26392

highpriority · track · 31EPSS 0.003 · 20 %ileDEEUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.28% (20th) EPSS
CVSS 7.8 · high
Is it mine?
120 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

Insufficient verification of missing size check in 'LoadModule' may lead to an out-of-bounds write potentially allowing an attacker with privileges to gain code execution of the OS/kernel by loading a malicious TA.

01

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

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
v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
02

weaknesses

The CWE weakness classes this flaw belongs to.

03

affected products (120)

Products and version ranges known to be affected.

showing 20 of 120
04

advisories (2)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2022-2349HP Computer AMD Client UEFI Firmware: Mehrere SchwachstellenDeutsch2022-12-15csaf · cert_bundDE

    Ein lokaler Angreifer kann mehrere Schwachstellen in HP Computern in der AMD Client UEFI Firmware ausnutzen, um seine Privilegien zu erhöhen und beliebigen Code auszuführen.

  • WID-SEC-W-2023-1190AMD Prozessoren: Mehrere SchwachstellenDeutsch2023-05-09csaf · cert_bundDE

    Ein lokaler Angreifer kann mehrere Schwachstellen in AMD Prozessoren ausnutzen, um beliebigen Programmcode mit Administratorrechten auszuführen, Informationen offenzulegen, Dateien zu manipulieren oder einen Denial of Service Zustand herbeizuführen.

05

also known as (3)

Other names and identifiers for this entity.

06

sources

Which sources assert this record, and when.

published 2022-11-09modified 2026-06-17
08

references (7)

External citations — patches, advisories, analysis.

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