CVE-2025-6037
CVE-2025-6037 is a medium-severity vulnerability in Hashicorp Vault with a CVSS 3.x base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-295.
Key facts
- Severity: Medium (CVSS 3.x base score 6.8)
- EPSS exploit prediction: 0% (13th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-23391
- Weakness: CWE-295
- Affected product: Hashicorp Vault
- Published:
- Last modified:
Description
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#certificate]. In this configuration, an attacker may be able to craft a malicious certificate that could be used to impersonate another user. Fixed in Vault Community Edition 1.20.1 and Vault Enterprise 1.20.1, 1.19.7, 1.18.12, and 1.16.23.
Frequently asked questions
- What is 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#certificate]. In this configuration, an attacker may be able to craft a malicious certificate that could be used to impersonate another user. Fixed in Vault Community Edition 1.20.1 and Vault Enterprise 1.20.1, 1.19.7, 1.18.12, and 1.16.23.
- How severe is CVE-2025-6037?
- CVE-2025-6037 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2025-6037 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-6037?
- CVE-2025-6037 primarily affects Hashicorp Vault. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2025-6037?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-6037 have an EU (EUVD) identifier?
- Yes. CVE-2025-6037 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-23391.
- When was CVE-2025-6037 published?
- CVE-2025-6037 was published on 2025-08-01 and last updated on 2026-06-17.
References
Affected products (3)
- cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:*
- cpe:2.3:a:hashicorp:vault:*:*:*:*:-:*:*:*
- cpe:2.3:a:hashicorp:vault:1.20.0:*:*:*:enterprise:*:*:*
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