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Missing AuthenticationWeakness · CWE-306

CVE-2026-9051

CRITICAL · 9.1 CVSS v3.1 Published 2026-05-29
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges 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
There is an authentication bypass vulnerability in the NI SystemLink Enterprise Dashboard application that may allow an unauthenticated remote attacker to bypass authentication controls leading to privilege escalation or information disclosure.  Successful exploitation requires an attacker to send a specially crafted HTTP request.  This vulnerability affects NI SystemLink Enterprise 2026-04 and prior versions.

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 confidence

The NI SystemLink Enterprise Dashboard application contains an authentication bypass vulnerability that allows unauthenticated remote attackers to bypass authentication controls via specially crafted HTTP requests. This can lead to privilege escalation or unauthorized access to sensitive information.

MitigationApply the vendor patch for NI SystemLink Enterprise version 2026-04 or later. If a patch is unavailable, implement compensating controls such as network segmentation and WAF rules to restrict access to the Dashboard interface.

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

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
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

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

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. Verify NI SystemLink Enterprise is installed
    Check for NI SystemLink Enterprise software in the system inventory, installed programs list, or running processes on the server
    Affected if NI SystemLink Enterprise is present on the system
  2. Determine the installed version of NI SystemLink Enterprise
    Use the system's software inventory tool, check the application's About page, or look for version information in the application directory or registry
    Affected if The version cannot be determined or is at or below 2026-04
  3. Confirm the web interface dashboard is enabled and accessible
    Verify that the NI SystemLink Enterprise web dashboard service is running and network-accessible on its default HTTP/HTTPS ports
    Affected if The web dashboard interface is exposed and reachable
  4. Compare installed version to affected range
    Compare the identified version against the affected range: versions 2026-04 and earlier are vulnerable; versions newer than 2026-04 are fixed
    Affected if The installed version is 2026-04 or earlier, and the web dashboard is accessible on the network

The environment is affected if NI SystemLink Enterprise version 2026-04 or earlier is installed with the web dashboard interface enabled and network-accessible.

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.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply the vendor patch for NI SystemLink Enterprise version 2026-04 or later. If a patch is unavailable, implement compensating controls such as network segmentation and WAF rules to restrict access to the Dashboard interface.

Recommended fix Moderate confidence

Contact NI for the specific fixed release (vendor should provide the patched version beyond 2026-04)

  1. Contact NI technical support to request the specific patch or fixed release for this authentication bypass vulnerability
  2. Verify the current SystemLink Enterprise version by checking the application's about or version information
  3. Apply the vendor-provided security update or upgrade to the fixed release as directed by NI
  4. After patching, verify that authentication controls are properly enforced and the vulnerability is resolved
  5. Review system logs for any indicators of exploitation attempts
Caveat Consult NI release notes for any configuration or compatibility changes in the security update

Generated from the published advisory — verify against the referenced sources before acting.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing6.0 h
  • Review / QA3.0 h
15.0 hours of engineering $2,560
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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-2026-9051 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