Vulnerability in Hashicorp Vault

CVE-2025-6037

Vault and Vault Enterprise (“Vault”) TLS certificate auth method did not correctly validate client certificates when configured with a non-CA certificate as [+trusted certificate+|https://developer.hashicorp.com/vault/api-docs/auth/cert#ce…

Vulnerability class: Improper Certificate Validation

EPSS: 0.002 (42.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-6037?
CVE-2025-6037 is a medium-severity vulnerability in Hashicorp Vault, classified under Improper Certificate Validation. CVSS score: 6.8/10. Published 2025-08-01.
How severe is CVE-2025-6037?
Medium severity. CVSS v3 base score is 6.8 out of 10.
Is CVE-2025-6037 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.