Nagios XiApplication · Nagios

CVE-2025-67255

HIGH · 8.8 CVSS v3.1 Published 2025-12-29
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
94/100
Remediation priority · Urgent
Remotely reachable Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
In NagiosXI 2026R1.0.1 build 1762361101, Dashboard parameters lack proper filtering, allowing any authenticated user to exploit a SQL Injection vulnerability.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

NagiosXI 2026R1.0.1 contains a SQL injection vulnerability in Dashboard parameters due to lack of proper input filtering. Any authenticated user can exploit this to inject malicious SQL queries, potentially leading to unauthorized data access or manipulation.

MitigationImplement proper input validation and parameterized queries (prepared statements) on all Dashboard parameters. Apply vendor security patches when available.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Nagios XiApplication
Affected:= 2026

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify Nagios XI installation
    Locate the Nagios XI web application directory, typically at /usr/local/nagiosxi/ or check for nagiosxi processes running on the server
    Affected if Nagios XI software is present on the system
  2. Check installed Nagios XI version
    View the version file at /usr/local/nagiosxi/etc/xi-version.txt or access the Nagios XI admin interface and look for the version number in the About/Help section
    Affected if The version number equals exactly 2026 (such as 2026R1.0.1)
  3. Verify Dashboard feature is enabled
    Log into Nagios XI as an authenticated user and navigate to the Dashboard section (typically /nagiosxi/dashboard or /nagiosxi/dashlets)
    Affected if The Dashboard interface is accessible and functional
  4. Confirm user authentication is active
    Check that the Nagios XI user authentication system is enabled by attempting to log in or reviewing the authentication configuration in the security settings
    Affected if Any authenticated user accounts exist and can access the Dashboard

You are affected if Nagios XI version 2026 is installed and the Dashboard feature is accessible to authenticated users.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Implement proper input validation and parameterized queries (prepared statements) on all Dashboard parameters. Apply vendor security patches when available.

Fix this in Nagios Xi Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
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Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-67255 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data