How severe is CVE-2025-56432?

CVE-2025-56432 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-56432 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-56432?

CVE-2025-56432 affects Nagios Nagios Xi. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-56432?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-56432 have an EU (EUVD) identifier?

Yes. CVE-2025-56432 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-28614.

When was CVE-2025-56432 published?

CVE-2025-56432 was published on 2025-08-26 and last updated on 2026-07-05.

CVE-2025-56432

CVE-2025-56432 is a medium-severity vulnerability in Nagios Nagios Xi with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-28614
Weakness: CWE-79
Affected product: Nagios Nagios Xi
Published: 2025-08-26
Last modified: 2026-07-05

Description

A cross-site scripting (XSS) vulnerability exists in Nagios XI 2024R2. The vulnerability allows remote attackers to execute arbitrary JavaScript in the context of a logged-in user's session via a specially crafted URL. The issue resides in a web component responsible for rendering performance-related data.

Frequently asked questions

What is CVE-2025-56432?: A cross-site scripting (XSS) vulnerability exists in Nagios XI 2024R2. The vulnerability allows remote attackers to execute arbitrary JavaScript in the context of a logged-in user's session via a specially crafted URL. The issue resides in a web component responsible for rendering performance-related data.
How severe is CVE-2025-56432?: CVE-2025-56432 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-56432 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-56432?: CVE-2025-56432 affects Nagios Nagios Xi. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-56432?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-56432 have an EU (EUVD) identifier?: Yes. CVE-2025-56432 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-28614.
When was CVE-2025-56432 published?: CVE-2025-56432 was published on 2025-08-26 and last updated on 2026-07-05.

References

https://www.nagios.com/changelog/

EU advisories (EUVD)

http://nagios.com

Affected products (1)

cpe:2.3:a:nagios:nagios_xi:2024:r2:*:*:*:*:*:*

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