CVE-2025-11366
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 · uneditedN-central < 2025.4 is vulnerable to authentication bypass via path traversal
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 · moderate confidenceN-central versions prior to 2025.4 contain an authentication bypass vulnerability that exploits path traversal, allowing unauthenticated attackers to potentially access protected resources without proper credentials.
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< 2025.4CVSS 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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/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 checksWork through these to decide whether this CVE applies to you.
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Determine installed N-central versionAccess the N-central admin interface and navigate to the About or System Information page, or run the command 'Get-NcentralVersion' via PowerShell if available, or check the installer log files for the installed build numberAffected if The version displayed is earlier than 2025.4 (for example, 2025.3, 2025.2, or any 2024.x release)
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Verify web interface accessibilityConfirm that the N-central web portal is accessible externally or internally on the default HTTPS port (usually 443 or 8080). Check if the IIS or Apache service hosting N-central is runningAffected if The web interface is exposed and accessible to unauthenticated users on the network
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Inspect access logs for path traversal patternsReview the N-central web server logs (IIS logs typically in C:\inetpub\logs\LogFiles or Apache logs in /var/log/httpd) for unusual request patterns such as '../' sequences, encoded path traversal (%2e%2e%2f), or attempts to access protected directories via traversal
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Check for unauthorized session creationReview N-central audit logs or security event logs for successful authentication attempts from unrecognized IP addresses or anonymous sessions that accessed protected endpoints without proper credentials
You are affected if your installed N-central version is any release prior to 2025.4 and the web interface is accessible, regardless of whether exploitation indicators are currently visible in logs.
Generated from the published advisory. Verify against your own configuration.
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.
dbcve · scoped2025.4
Upgrade N-central to version 2025.4 or later to remediate the path traversal-based authentication bypass.
2025.4
- 1. Ensure you have a complete backup of your N-central system before proceeding with any upgrade.
- 2. Review the N-central 2025.4 release notes at me.n-able.com for any prerequisites or migration considerations.
- 3. Schedule a maintenance window as upgrades may require system downtime.
- 4. Download N-central version 2025.4 or later from the N-able customer portal at me.n-able.com.
- 5. Follow the standard N-central upgrade procedure documented in the N-central administration guide.
- 6. After upgrade, verify the authentication mechanism is functioning correctly.
- 7. Confirm the path traversal vulnerability is remediated by testing the affected vectors.
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,544.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-11366 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-11366 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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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.
- 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