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Vulnerability record · CVE-2021-38112 · published 22 September 2021

CVE-2021-38112: Amazon aws workspaces argument injection vulnerability

Amazon · Aws Workspaces

In the Amazon AWS WorkSpaces client 3.0.10 through 3.1.8 on Windows, argument injection in the workspaces:// URI handler can lead to remote code execution because of the Chromium Embedded Framework (CEF) --gpu-launcher argument. This is fixed in 3.1.9.

8.8 CVSS 3.1 High EPSS 7.5% · top 5.7% CWE-88 · Argument injection
8.8CVSS 3.1 base score, v2 9.3
7.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

In the Amazon AWS WorkSpaces client 3.0.10 through 3.1.8 on Windows, argument injection in the workspaces:// URI handler can lead to remote code execution because of the Chromium Embedded Framework (CEF) --gpu-launcher argument. This is fixed in 3.1.9.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://docs.aws.amazon.com/workspaces/latest/userguide/amazon-workspaces-windows-client.html#windows-release-notes Vendor Advisory
https://rhinosecuritylabs.com/aws/cve-2021-38112-aws-workspaces-rce/ ExploitThird Party Advisory
https://docs.aws.amazon.com/workspaces/latest/userguide/amazon-workspaces-windows-client.html#windows-release-notes Vendor Advisory
https://rhinosecuritylabs.com/aws/cve-2021-38112-aws-workspaces-rce/ ExploitThird Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-38112), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.