CVE-2021-26368

Insufficient check of the process type in Trusted OS (TOS) may allow an attacker with privileges...

4.4 Medium

Insufficient check of the process type in Trusted OS (TOS) may allow an attacker with privileges to enable a lesser privileged process to unmap memory owned by a higher privileged process resulting in a denial of service.

Attack profile

How easy it is to exploit

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

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

0.14%Down 0.7 points since May 13, 2022

What each source reports

NVD Score used 4.4

Record: CVE-2021-26368
CVSS 3.1: 4.4 MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0: 4.9 MediumAV:L/AC:L/Au:N/C:N/I:N/A:C
Weakness: CWE-345
Updated: 2026-11-02

CVE List No score

Record: CVE-2021-26368
Updated: 2026-11-02

EUVDEUVD-2021-13174 No score

Record: EUVD-2021-13174
Updated: 2026-11-03

GitHub AdvisoriesGHSA-q98f-vpvc-2r7r 4.4

Insufficient check of the process type in Trusted OS (TOS) may allow an attacker with privileges...

Record: GHSA-q98f-vpvc-2r7r
CVSS 3.1: 4.4 MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-345
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-2021-26368 is a medium vulnerability (CVSS 4.4) in Amd Athlon™ Series, published May 12, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.14%, the 3rd percentile. No source names a fixed version.