How severe is CVE-2023-3775?

CVE-2023-3775 has a CVSS 3.x base score of 4.2, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-3775 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-3775?

CVE-2023-3775 affects Hashicorp Vault. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-3775?

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

When was CVE-2023-3775 published?

CVE-2023-3775 was published on 2023-09-29 and last updated on 2026-06-17.

CVE-2023-3775

CVE-2023-3775 is a medium-severity vulnerability in Hashicorp Vault with a CVSS 3.x base score of 4.2. 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-266.

Key facts

Severity: Medium (CVSS 3.x base score 4.2)
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-266
Affected product: Hashicorp Vault
Published: 2023-09-29
Last modified: 2026-06-17

Description

A Vault Enterprise Sentinel Role Governing Policy created by an operator to restrict access to resources in one namespace can be applied to requests outside in another non-descendant namespace, potentially resulting in denial of service. Fixed in Vault Enterprise 1.15.0, 1.14.4, 1.13.8.

Frequently asked questions

What is CVE-2023-3775?: A Vault Enterprise Sentinel Role Governing Policy created by an operator to restrict access to resources in one namespace can be applied to requests outside in another non-descendant namespace, potentially resulting in denial of service. Fixed in Vault Enterprise 1.15.0, 1.14.4, 1.13.8.
How severe is CVE-2023-3775?: CVE-2023-3775 has a CVSS 3.x base score of 4.2, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-3775 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-3775?: CVE-2023-3775 affects Hashicorp Vault. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-3775?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-3775 published?: CVE-2023-3775 was published on 2023-09-29 and last updated on 2026-06-17.

References

https://discuss.hashicorp.com/t/hcsec-2023-29-vault-enterprise-s-sentinel-rgp-policies-allowed-for-cross-namespace-denial-of-service/58653

Affected products (1)

cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:*

More vulnerabilities in Hashicorp Vault

CVE-2020-35192 — Critical (CVSS 9.8): The official vault docker images before 0.11.6 contain a blank password for a root user. System using the vault docker…
CVE-2020-12757 — Critical (CVSS 9.8): HashiCorp Vault and Vault Enterprise 1.4.0 and 1.4.1, when configured with the GCP Secrets Engine, may incorrectly…
CVE-2025-6000 — Critical (CVSS 9.1): A privileged Vault operator within the root namespace with write permission to {{sys/audit}} may obtain code execution…
CVE-2022-40186 — Critical (CVSS 9.1): An issue was discovered in HashiCorp Vault and Vault Enterprise before 1.11.3. A vulnerability in the Identity Engine…
CVE-2022-36129 — Critical (CVSS 9.1): HashiCorp Vault Enterprise 1.7.0 through 1.9.7, 1.10.4, and 1.11.0 clusters using Integrated Storage expose an…
CVE-2020-10661 — Critical (CVSS 9.1): HashiCorp Vault and Vault Enterprise versions 0.11.0 through 1.3.3 may, under certain circumstances, have existing…

All CVEs affecting Hashicorp Vault →

Other CWE-266 (Incorrect Privilege Assignment) vulnerabilities

CVE-2026-23800 — Critical (CVSS 10.0): Incorrect Privilege Assignment vulnerability in Modular DS modular-connector allows Privilege Escalation.This issue…
CVE-2025-41115 — Critical (CVSS 10.0): SCIM provisioning was introduced in Grafana Enterprise and Grafana Cloud in April to improve how organizations manage…
CVE-2024-9479 — Critical (CVSS 10.0): Improper Privilege Management vulnerability in upKeeper Solutions upKeeper Instant Privilege Access allows Privilege…
CVE-2024-9478 — Critical (CVSS 10.0): Improper Privilege Management vulnerability in upKeeper Solutions upKeeper Instant Privilege Access allows Privilege…
CVE-2026-42368 — Critical (CVSS 9.9): A privilege escalation vulnerability exists in the Web Interface functionality of GeoVision LPC2011/LPC2211 1.10. A…
CVE-2026-32922 — Critical (CVSS 9.9): OpenClaw before 2026.3.11 contains a privilege escalation vulnerability in device.token.rotate that allows callers with…

Browse all CWE-266 (Incorrect Privilege Assignment) vulnerabilities →