Nagios Fusion versions prior to 2024R2.1 contain a brute-force bypass in the Two-Factor Authentication (2FA) implementation. The application did not properly enforce rate limiting or account lockout for repeated failed 2FA verification attempts, allowing a remote attacker to repeatedly try second-factor codes for a targeted account. By abusing the lack of enforcement, an attacker could eventually successfully authenticate to accounts protected by 2FA.
History

Fri, 31 Oct 2025 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 31 Oct 2025 10:15:00 +0000

Type Values Removed Values Added
First Time appeared Nagios
Nagios fusion
Vendors & Products Nagios
Nagios fusion

Thu, 30 Oct 2025 21:30:00 +0000

Type Values Removed Values Added
Description Nagios Fusion versions prior to 2024R2.1 contain a brute-force bypass in the Two-Factor Authentication (2FA) implementation. The application did not properly enforce rate limiting or account lockout for repeated failed 2FA verification attempts, allowing a remote attacker to repeatedly try second-factor codes for a targeted account. By abusing the lack of enforcement, an attacker could eventually successfully authenticate to accounts protected by 2FA.
Title Nagios Fusion < 2024R2.1 2FA Brute Force Bypass
Weaknesses CWE-307
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2025-10-30T21:19:05.690Z

Updated: 2025-10-31T17:18:53.708Z

Reserved: 2025-04-15T19:15:22.577Z

Link: CVE-2025-34249

cve-icon Vulnrichment

Updated: 2025-10-31T17:18:47.600Z

cve-icon NVD

Status : Received

Published: 2025-10-30T22:15:47.260

Modified: 2025-10-30T22:15:47.260

Link: CVE-2025-34249

cve-icon Redhat

No data.