What’s Vulnerable › Vulnerabilities

CVE-2024-13999: Nagios XI < 2024R1.1.3 AD/LDAP Token Authenticated Information Disclosure

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-30 · updated 2026-10-02
• Weakness: CWE-497

Description

Nagios XI versions prior to 2024R1.1.3, under certain circumstances, disclose the server's Active Directory (AD) or LDAP authentication token to an authenticated user. Exposure of the server’s AD/LDAP token could allow domain-wide authentication misuse, escalation of privileges, or further compromise of network-integrated systems.

Affected products

• Nagios XI: before 2024; 2024-r1, 2024-r1.0.1, 2024-r1.0.2, 2024-r1.1, 2024-r1.1.1, 2024-r1.1.2 — fixed in 2024

How to fix

Upgrade to a fixed version: Nagios XI 2024. Check the vendor advisory for mitigations.

References

• https://www.nagios.com/changelog/nagios-xi/
• https://www.nagios.com/products/security/#nagios-xi
• https://www.vulncheck.com/advisories/nagios-xi-ad-ldap-token-authenticated-information-disclosure

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