CVE-2022-25166

Name: CVE-2022-25166
Creator: NVD / NIST
Published: 2022-04-14T16:15:08.763+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5/10EPSS 1.42%

Last modified Jun 17, 2026

CVE-2022-25166 is a medium-severity vulnerability rated 5/10 on the CVSS scale. An issue was discovered in Amazon AWS VPN Client 2.0.0. It is possible to include a UNC path in the OpenVPN configuration file when referencing file paths for parameters (such as auth-user-pass). EPSS estimates a 1.42% chance of exploitation in the next 30 days.

Description

An issue was discovered in Amazon AWS VPN Client 2.0.0. It is possible to include a UNC path in the OpenVPN configuration file when referencing file paths for parameters (such as auth-user-pass). When this file is imported and the client attempts to validate the file path, it performs an open operation on the path and leaks the user's Net-NTLMv2 hash to an external server. This could be exploited by having a user open a crafted malicious ovpn configuration file.

Metrics

CVSS 3.1

5/10

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

EPSS Probability

1.42%

69.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Amazon	Aws Client Vpn	2.0.0

References

https://github.com/RhinoSecurityLabs/CVEsExploit, Third Party Advisory
https://rhinosecuritylabs.com/aws/cve-2022-25165-aws-vpn-client/Exploit, Third Party Advisory
https://github.com/RhinoSecurityLabs/CVEsExploit, Third Party Advisory
https://rhinosecuritylabs.com/aws/cve-2022-25165-aws-vpn-client/Exploit, Third Party Advisory

Timeline

Published: Apr 14, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-25166?

How severe is CVE-2022-25166?

CVE-2022-25166 has a CVSS score of 5/10 (MEDIUM severity). The EPSS model estimates a 1.42% probability of exploitation in the next 30 days.

How do I fix CVE-2022-25166?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-25166?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST