Cyber Resilience

CVE-2025-28059

Nagios Network Analyzer 2024

Published
18 April 2025
Modified
17 June 2026
CVSS Score v3.1 7.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0078 53th percentile
Risk Priority 59 floored blend · peak EPSS

Summary

CVE-2025-28059 is a high-severity Insufficient Session Expiration (CWE-613) vulnerability in Nagios Network Analyzer. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Browser Session Hijacking (T1185); ranked in the top 47% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to AC-12 (Session Termination) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2025-28059 is an access control vulnerability affecting Nagios Network Analyzer version 2024R1.0.3. It stems from improper session invalidation and stale token handling under CWE-613, where deletion of a user account by an administrator does not terminate active sessions or revoke associated API tokens, allowing continued access to system resources.

An unauthenticated attacker who previously held a valid account can exploit the flaw to retain unauthorized access to restricted functions after deletion. The issue carries a CVSS 3.1 score of 7.5 with a network attack vector, low complexity, and no required privileges or user interaction, resulting in high confidentiality impact.

The provided references include a Nagios changelog entry for the Network Analyzer product and a GitHub repository documenting residual data access after user deletion, though no explicit patch or mitigation details are stated in the available information. The associated EPSS score remains low, moving only from 0.0103 to a peak of 0.0106.

OWASP Top 10 for Web (2025)

A07:2025 Authentication Failures

EU & UK References

Vulnerability Data

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…

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sessions and revoke associated API tokens, enabling unauthorized access to restricted functions.

CWE(s)
CWE-613

Related Threats

MITRE ATT&CK Enterprise Techniques

T1185 Browser Session Hijacking Collection
Adversaries may take advantage of security vulnerabilities and inherent functionality in browser software to change content, modify user-behaviors, and intercept information as part of various browser session hijacking techniques.
attack.mitre.org →
T1550 Use Alternate Authentication Material Lateral Movement
Adversaries may use alternate authentication material, such as password hashes, Kerberos tickets, and application access tokens, in order to move laterally within an environment and bypass normal system access controls.
attack.mitre.org →
T1550.004 Web Session Cookie Lateral Movement
Adversaries can use stolen session cookies to authenticate to web applications and services.
attack.mitre.org →
T1563 Remote Service Session Hijacking Lateral Movement
Adversaries may take control of preexisting sessions with remote services to move laterally in an environment.
attack.mitre.org →
T1539 Steal Web Session Cookie Credential Access
An adversary may steal web application or service session cookies and use them to gain access to web applications or Internet services as an authenticated user without needing credentials.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-34278Same product: Nagios Network Analyzer
CVE-2023-7319Same product: Nagios Network Analyzer
CVE-2025-28132Same product class: network monitoring / SIEM
CVE-2025-28131Same product: Nagios Network Analyzer
CVE-2024-13996Same product class: network monitoring / SIEM
CVE-2025-34280Same product: Nagios Network Analyzer
CVE-2025-56432Same product class: network monitoring / SIEM
CVE-2023-53688Same product class: network monitoring / SIEM
CVE-2023-7314Same product class: network monitoring / SIEM
CVE-2024-14000Same product class: network monitoring / SIEM

Affected Assets

nagios
network analyzer
2024

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

AC-12 Session Termination good match

AC-12 directly requires automatic session termination after a defined period, structurally preventing reuse of expired session identifiers.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.AA-01 mostly match
prevents

Credential lifecycle management directly includes enforcing session expiration to prevent reuse.

PR.AA-05 mostly match
prevents

Authorization policy enforcement and review covers terminating stale sessions to limit access scope.

PR.AA-03 partial match
prevents

Authentication mechanisms can incorporate session timeout checks but do not inherently address expiration policy.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.5 Secure authentication none match
none

Automatic termination of inactive sessions and limits on connection duration shrink the window during which a hijacked or unattended authenticated session can be exploited.

References