Cyber Resilience

CVE-2024-2660

Medium

Published: 04 April 2024

Published
04 April 2024
Modified
08 August 2025
KEV Added
Patch
CVSS Score v3.1 6.4 CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0069 72.4th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-2660 is a medium-severity Failing Open (CWE-636) vulnerability in Hashicorp Vault. Its CVSS base score is 6.4 (Medium).

Operationally, ranked in the top 27.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Vault and Vault Enterprise TLS certificates auth method did not correctly validate OCSP responses when one or more OCSP sources were configured. This vulnerability, CVE-2024-2660, affects Vault and Vault Enterprise 1.14.0 and above, and is fixed in Vault 1.16.0 and…

more

Vault Enterprise 1.16.1, 1.15.7, and 1.14.11.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

hashicorp
vault
1.14.0 — 1.14.11 · 1.14.0 — 1.16.0 · 1.15.0 — 1.15.7

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-636

Ensures audit logging continues on primary failure instead of failing open with no logging capability.

addresses: CWE-636

Supports failing securely by requiring alerts and configurable actions (e.g., shutdown) when the audit mechanism fails instead of continuing without it.

addresses: CWE-636

Entering safe mode when conditions are detected prevents failing open and continuing normal operation in a potentially exploitable state.

addresses: CWE-636

Ensures security functions remain enforced via alternatives instead of defaulting to an insecure state when the primary means fails.

addresses: CWE-636

Fail-safe-defaults principle prevents systems from failing open.

addresses: CWE-636

Directly requires transition to a known (secure) state on failure, preventing fail-open behavior.

addresses: CWE-636

Standby components and explicit exchange criteria enforce a controlled, secure failover instead of failing open.

addresses: CWE-636

Directly implements fail-safe (fail-closed/secure) behavior on indicated failures, preventing the system from defaulting to an insecure open state.

References