A lack of rate limiting in the OTP verification component of Nagios Fusion v2024R1.2 and v2024R2 allows attackers to bypass authentication…

published 2025-10-27 last yr. modified 2026-10-27 13d ago also EUVD-2025-36197

cvss: 7.6; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 54%
public exploits: 0; none known

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.

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CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: last yr. (2025-10-27)

Exploit prediction

0.72% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	7.6	CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
CNA	3.1	7.6	CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

Classification

Weakness

CWE-307 Improper Restriction of Excessive Authentication Attempts
CWE-287 Improper Authentication

References

github.com /aakashtyal/2FA-Bypass-using-a-Brute-Force-Attack
mitigation, third-party-advisory
nagios.com /changelog/#fusion
release-notes
github.com /aakashtyal/2FA-Bypass-using-a-Brute-Force-Attack-CVE-2025-60424
mitigation, third-party-advisory

Sources

CVE List CVE-2025-60424
NVD CVE-2025-60424

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