Description
A lack of rate limiting in the OTP verification component of Nagios Fusion v2024R1.2 and v2024R2 allows attackers to bypass authentication via a bruteforce attack.
Affected products
nagios: fusion
References3
- github.com/aakashtyal/2FA-Bypass-using-a-Brute-Force-Attack MitigationThird Party Advisory
- github.com/aakashtyal/2FA-Bypass-using-a-Brute-Force-Attack-CVE… MitigationThird Party Advisory
- www.nagios.com/changelog/#fusion Release Notes
Metrics
- CVSS 3.1
-
7.6
HIGH
Score source: CNA
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L - EPSS — exploit probability
- 1% percentile: 54 · as of 10 November 2026
- CWE
- CWE-287CWE-307
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.