What is CVE-2023-3774?

CVE-2023-3774 is a medium-severity vulnerability in Hashicorp Vault, classified under CWE-248. CVSS score: 4.9/10. Published 2023-07-28.

How severe is CVE-2023-3774?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Vulnerability in Hashicorp Vault

CVE-2023-3774

An unhandled error in Vault Enterprise's namespace creation may cause the Vault process to crash, potentially resulting in denial of service. Fixed in 1.14.1, 1.13.5, and 1.12.9.

Published 2023-07-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.007 (51.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Hashicorp Vault — versions 1.12.8, 1.13.4, 1.14.0
Hashicorp Vault Enterprise — versions 1.14.0, 1.13.4, 1.12.8

Weakness classification (CWE)

References

discuss.hashicorp.com/t/hcsec-2023-23-vault-enterprise-namespace-creation-may-l… (Vendor Advisory)

Frequently asked questions

What is CVE-2023-3774?: CVE-2023-3774 is a medium-severity vulnerability in Hashicorp Vault, classified under CWE-248. CVSS score: 4.9/10. Published 2023-07-28.
How severe is CVE-2023-3774?: Medium severity. CVSS v3 base score is 4.9 out of 10.