Nagios XI versions prior to 2024R1.1.3, under certain circumstances, disclose sensitive user account information (including API keys and hashed passwords) to authenticated users who should not have access to that data. Exposure of API keys or password hashes could lead to account compromise, abuse of API privileges, or offline cracking attempts. CVE-2024-13995 addresses a similar vulnerability with a potentially incomplete fix for the underlying problem in earlier versions.
Conclusion & alert: CVE-2024-13998 is rated Moderate Risk (41.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.85%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 1.55% | 0.85% | -0.70% |
| 2 | 2026-06-09 | 1.62% | 1.55% | -0.07% |
| 3 | 2026-05-30 | — | 1.62% | — |
Full EPSS history (11 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.0 | 4.0 | MEDIUM |
|
— | — | [email protected] |
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| nagios | nagios_xi | < 2024 | cpe:2.3:a:nagios:nagios_xi:*:*:*:*:*:*:*:* |
| nagios | nagios_xi | 2024 | cpe:2.3:a:nagios:nagios_xi:2024:r1:*:*:*:*:*:* |
| nagios | nagios_xi | 2024 | cpe:2.3:a:nagios:nagios_xi:2024:r1.0.1:*:*:*:*:*:* |
| nagios | nagios_xi | 2024 | cpe:2.3:a:nagios:nagios_xi:2024:r1.0.2:*:*:*:*:*:* |
| nagios | nagios_xi | 2024 | cpe:2.3:a:nagios:nagios_xi:2024:r1.1:*:*:*:*:*:* |
| nagios | nagios_xi | 2024 | cpe:2.3:a:nagios:nagios_xi:2024:r1.1.1:*:*:*:*:*:* |
| nagios | nagios_xi | 2024 | cpe:2.3:a:nagios:nagios_xi:2024:r1.1.2:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://www.nagios.com/changelog/nagios-xi/ | Release Notes |
| https://www.nagios.com/products/security/#nagios-xi | Vendor Advisory |
| https://www.vulncheck.com/advisories/nagios-xi-api-keys-and-hashed-password-authenticated-information-disclosure-2 | Third Party Advisory |