An access control vulnerability in Nagios Network Analyzer 2024R1.0.3 allows deleted users to retain access to system resources due to improper session invalidation and stale token handling. When an administrator deletes a user account, the backend fails to terminate active sessions and revoke associated API tokens, enabling unauthorized access to restricted functions.
Conclusion & alert: CVE-2025-28059 is rated Moderate Risk (57.8/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.03%). 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 | 2026-06-04 | 0.44% | 1.03% | +0.59% |
| 2 | 2026-05-27 | 1.06% | 0.44% | -0.62% |
| 3 | 2026-02-12 | — | 1.06% | — |
Full EPSS history (12 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| nagios | network_analyzer | 2024 | cpe:2.3:a:nagios:network_analyzer:2024:r1.0.3:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://github.com/aakashtyal/Residual-Data-Access-Post-User-Deletion-in-Nagios-Network-Analyzer-Version-2024R1 | Third Party Advisory |
| https://www.nagios.com/changelog/#network-analyze | Release Notes |