Cyber Resilience

CVE-2021-37934

CriticalPublic PoC

Published: 10 December 2021

Published
10 December 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0136 80.6th percentile
Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-37934 is a critical-severity Improper Restriction of Excessive Authentication Attempts (CWE-307) vulnerability in Huntflow Huntflow Enterprise. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 19.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

Due to insufficient server-side login-attempt limit enforcement, a vulnerability in /account/login in Huntflow Enterprise before 3.10.14 could allow an unauthenticated, remote user to perform multiple login attempts for brute-force password guessing.

CWE(s)

Related Threats

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

Affected Assets

huntflow
huntflow enterprise
≤ 3.10.14

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-307

This control directly enforces limits on consecutive invalid logon attempts and automatic response (e.g., lockout) to prevent brute-force exploitation of authentication mechanisms.

addresses: CWE-307

Specific conditions can include excessive failed attempts, triggering stronger authentication that restricts brute-force exploitation.

References