How severe is CVE-2025-28059?

CVE-2025-28059 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-28059 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-28059?

CVE-2025-28059 affects Nagios Network Analyzer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-28059?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-28059 have an EU (EUVD) identifier?

Yes. CVE-2025-28059 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-11858.

When was CVE-2025-28059 published?

CVE-2025-28059 was published on 2025-04-18 and last updated on 2026-06-17.

CVE-2025-28059

CVE-2025-28059 is a high-severity vulnerability in Nagios Network Analyzer with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-613.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-11858
Weakness: CWE-613
Affected product: Nagios Network Analyzer
Published: 2025-04-18
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2025-28059?: CVE-2025-28059 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-28059 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-28059?: CVE-2025-28059 affects Nagios Network Analyzer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-28059?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-28059 have an EU (EUVD) identifier?: Yes. CVE-2025-28059 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-11858.
When was CVE-2025-28059 published?: CVE-2025-28059 was published on 2025-04-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nagios:network_analyzer:2024:r1.0.3:*:*:*:*:*:*

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