Vulnerability · Published Jul 23, 2025 · Assigned by AMZN

CVE-2025-8069Local Privilege Escalation Vulnerability in AWS Client VPN Windows Client

High 7.8

In plain English

A high-severity incorrect default permissions in Client VPN from AWS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).

Severity (CVSS 3.1)7.8High

Exploit odds (30 days)0.2%top 91.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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. We recommend users discontinue any new installations of AWS Client VPN on Windows prior to version 5.2.2.

Affected products (as reported)

Vendor	Product	Versions
AWS	Client VPN	4.1.05.0.0 – before 5.2.2

Weakness: CWE-276 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

https://aws.amazon.com/security/security-bulletins/AWS-2025-014/ vendor-advisory
https://docs.aws.amazon.com/vpn/latest/clientvpn-user/client-vpn-connect-windows-release-notes.html patch, release-notes