CVE-2025-8069: CWE-276 Incorrect Default Permissions in AWS Client VPN
Scope: Amazon/AWS Content Type: Important (requires attention) Publication Date: 2025/07/23 8:30 AM PDT Description: AWS Client VPN is a managed client-based VPN service that enables secure access to AWS and on-premises resources. The AWS Client VPN client software runs on end-user devices, supporting Windows, macOS, and Linux and provides the ability for end users to establish a secure tunnel to the AWS Client VPN Service. We identified CVE-2025-###, an issue in AWS Client VPN. During the AWS Client VPN client installation on Windows devices, the install process references the C:\usr\local\windows-x86_64-openssl-localbuild\ssl directory location to fetch the OpenSSL configuration file. As a result, a non-admin user could place arbitrary code in the configuration file. If an admin user starts the AWS Client VPN client installation process, that code could be executed with root-level privileges. This issue does not affect Linux or Mac devices. Affected version: 4.1.0, 5.0.0, 5.0.1, 5.0.2, 5.1.0, 5.2.0, 5.2.1
AI Analysis
Technical Summary
This vulnerability (CVE-2025-8069) involves incorrect default permissions (CWE-276) in the AWS Client VPN Windows installer prior to version 5.2.2. The installer references a directory where a non-admin user can write malicious code into the OpenSSL configuration file. When an administrator runs the installer, the malicious code executes with elevated privileges, potentially leading to privilege escalation. The issue is limited to Windows installations and does not impact Linux or Mac clients. AWS has not yet released a patch or updated version to address this issue and recommends halting new installations of affected versions.
Potential Impact
A non-administrative user can exploit this vulnerability to execute arbitrary code with root-level privileges during the installation process of AWS Client VPN on Windows. This could lead to full system compromise on affected Windows machines. The vulnerability is rated high severity with a CVSS 4.0 score of 7.3. There are no known exploits in the wild at this time.
Mitigation Recommendations
No official patch or fix is currently available for this vulnerability. AWS recommends discontinuing new installations of affected AWS Client VPN Windows versions prior to 5.2.2 until updated software is released. Users should avoid installing or upgrading to vulnerable versions and monitor AWS advisories for the release of a fixed version.
CVE-2025-8069: CWE-276 Incorrect Default Permissions in AWS Client VPN
Description
Scope: Amazon/AWS Content Type: Important (requires attention) Publication Date: 2025/07/23 8:30 AM PDT Description: AWS Client VPN is a managed client-based VPN service that enables secure access to AWS and on-premises resources. The AWS Client VPN client software runs on end-user devices, supporting Windows, macOS, and Linux and provides the ability for end users to establish a secure tunnel to the AWS Client VPN Service. We identified CVE-2025-###, an issue in AWS Client VPN. During the AWS Client VPN client installation on Windows devices, the install process references the C:\usr\local\windows-x86_64-openssl-localbuild\ssl directory location to fetch the OpenSSL configuration file. As a result, a non-admin user could place arbitrary code in the configuration file. If an admin user starts the AWS Client VPN client installation process, that code could be executed with root-level privileges. This issue does not affect Linux or Mac devices. Affected version: 4.1.0, 5.0.0, 5.0.1, 5.0.2, 5.1.0, 5.2.0, 5.2.1
CVSS v4.0
Score 7.3high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2025-8069) involves incorrect default permissions (CWE-276) in the AWS Client VPN Windows installer prior to version 5.2.2. The installer references a directory where a non-admin user can write malicious code into the OpenSSL configuration file. When an administrator runs the installer, the malicious code executes with elevated privileges, potentially leading to privilege escalation. The issue is limited to Windows installations and does not impact Linux or Mac clients. AWS has not yet released a patch or updated version to address this issue and recommends halting new installations of affected versions.
Potential Impact
A non-administrative user can exploit this vulnerability to execute arbitrary code with root-level privileges during the installation process of AWS Client VPN on Windows. This could lead to full system compromise on affected Windows machines. The vulnerability is rated high severity with a CVSS 4.0 score of 7.3. There are no known exploits in the wild at this time.
Mitigation Recommendations
No official patch or fix is currently available for this vulnerability. AWS recommends discontinuing new installations of affected AWS Client VPN Windows versions prior to 5.2.2 until updated software is released. Users should avoid installing or upgrading to vulnerable versions and monitor AWS advisories for the release of a fixed version.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- AMZN
- Date Reserved
- 2025-07-22T23:35:20.181Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 688107a5ad5a09ad0026b3d4
Added to database: 07/23/2025, 16:02:45 UTC
Last enriched: 06/05/2026, 19:28:07 UTC
Last updated: 08/19/2026, 22:52:09 UTC
Views: 249
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