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CVE-2025-3879

6.6 · MEDIUM

Vault Community, Vault Enterprise (“Vault”) Azure Auth method did not correctly validate the claims in the Azure-issued token, resulting in the potential bypass of the bound_locations parameter on…

Published May 2, 2025CWE-863EPSS 0.44%

Overview

CVE-2025-3879 is a medium-severity vulnerability. It was published on May 2, 2025 and has a CVSS 3.1 base score of 6.6 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.6, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Vault Community, Vault Enterprise (“Vault”) Azure Auth method did not correctly validate the claims in the Azure-issued token, resulting in the potential bypass of the bound_locations parameter on login. Fixed in Vault Community Edition 1.19.1 and Vault Enterprise 1.19.1, 1.18.7, 1.17.14, 1.16.18.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refdiscuss.hashicorp.com/t/hcsec-2025-07-vault-s-azure-authentication-method-bound-location-restriction-could-be-bypassed-on-login/74716

How CyberStrike helps

Frequently asked questions

What is CVE-2025-3879?

CVE-2025-3879 is a medium-severity vulnerability. It was published on May 2, 2025 and has a CVSS 3.1 base score of 6.6 (MEDIUM).

How severe is CVE-2025-3879?

This vulnerability has a CVSS 3.1 base score of 6.6, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-3879?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-3879?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-3879 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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