Vulnerability in Nagios Network Analyzer
CVE-2025-28059
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.008 (55.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 55.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: +0.000
Affected products
- Nagios Network Analyzer — versions 2024
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/aakashtyal/Residual-Data-Access-Post-User-Deletion-in-Nagios-Network… (Third Party Advisory)
- www.nagios.com/changelog/ (Release Notes)
Frequently asked questions
- What is CVE-2025-28059?
- CVE-2025-28059 is a high-severity vulnerability in Nagios Network Analyzer, classified under Insufficient Session Expiration. CVSS score: 7.5/10. Published 2025-04-18.
- How severe is CVE-2025-28059?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2025-28059 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.