How severe is CVE-2023-3774?

CVE-2023-3774 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-3774 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-3774?

CVE-2023-3774 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-2023-3774?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-3774 published?

CVE-2023-3774 was published on 2023-07-28 and last updated on 2026-06-17.

CVE-2023-3774

CVE-2023-3774 is a medium-severity vulnerability in Hashicorp Vault with a CVSS 3.x base score of 4.9. 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-755.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-755
Affected product: Hashicorp Vault
Published: 2023-07-28
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2023-3774?: CVE-2023-3774 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-3774 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-3774?: CVE-2023-3774 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-2023-3774?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-3774 published?: CVE-2023-3774 was published on 2023-07-28 and last updated on 2026-06-17.

References

https://discuss.hashicorp.com/t/hcsec-2023-23-vault-enterprise-namespace-creation-may-lead-to-denial-of-service/56617

Affected products (3)

cpe:2.3:a:hashicorp:vault:1.12.8:*:*:*:enterprise:*:*:*
cpe:2.3:a:hashicorp:vault:1.13.4:*:*:*:enterprise:*:*:*
cpe:2.3:a:hashicorp:vault:1.14.0:*:*:*:enterprise:*:*:*

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