Is CVE-2024-13999 in the CISA KEV catalog?

No. CVE-2024-13999 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-13999?

CVE-2024-13999 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2024-13999?

CVE-2024-13999 has an EPSS score of 1.79% (76th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-13999?

Upgrade nagios xi to 2024 or later.

CVE & CISA-KEV Catalog

CVE-2024-13999

CRITICALEPSS 76th pctl

9.8

CVSS v3

NVD

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.

CWE-497

How to fix

Remediation Available

nagios xiNVD

Affected:< 2024Fixed in:2024CVE-2024-13999derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

1.79%probability of exploitation in 30 days

76thpercentile

Elevated risk: more likely to be exploited than 76% of all known CVEs.

References

Vendor Advisory1

nagios.com

Third-Party Advisory1

vulncheck.com

Release Notes1

nagios.com

Related Vulnerabilities

Other CWE-497 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-31955	Medium	5.5	81%	KEV	Fix
CVE-2026-7864	Medium	6.9	17%	-	-
CVE-2025-44823	Critical	9.9	16%	-	Fix
CVE-2025-55131	High	7.1	3.5%	-	Fix
CVE-2026-34413	High	8.6	2.8%	-	-
CVE-2024-5735	High	7.5	1.5%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-06.