CVE-2021-26392

Insufficient verification of missing size check in 'LoadModule' may lead to an out-of-bounds...

7.8 High

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.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.29%Down 2.3 points since Nov 10, 2022

What each source reports

NVD Score used 7.8

Record: CVE-2021-26392
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-787
Updated: 2026-11-02

CVE List No score

Record: CVE-2021-26392
Updated: 2026-11-02

EUVDEUVD-2021-13198 No score

Record: EUVD-2021-13198
Updated: 2026-11-03

GitHub AdvisoriesGHSA-494r-cmj8-94j9 7.8

Insufficient verification of missing size check in 'LoadModule' may lead to an out-of-bounds...

Record: GHSA-494r-cmj8-94j9
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-787
Updated: 2026-11-02

Affected products

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History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases, published	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-26392 is a high vulnerability (CVSS 7.8) in Amd Radeon Rx 5000 Series & Pro W5000 Series, published November 9, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.29%, the 22nd percentile. No source names a fixed version.