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XML External Entity (XXE)Weakness · CWE-611

CVE-2025-7766

HIGH · 8.0 CVSS v3.1 Published 2025-07-22
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
83/100
Remediation priority · High
No privileges

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
Lantronix Provisioning Manager is vulnerable to XML external entity attacks in configuration files supplied by network devices, leading to unauthenticated remote code execution on hosts with Provisioning Manager installed.

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

Lantronix Provisioning Manager is vulnerable to XML external entity (XXE) injection when parsing configuration files supplied by network devices. This XXE flaw allows unauthenticated attackers to achieve remote code execution on hosts running the Provisioning Manager software.

MitigationApply vendor-provided patches when available; until then, disable XML external entity processing in the application's XML parser configuration and restrict network access to trusted devices only.

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
Adjacent
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:A/AC:L/PR:N/UI:R/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. Confirm Lantronix Provisioning Manager installation
    Locate the installation directory (commonly C:\Program Files\Lantronix\Provisioning Manager or /opt/lantronix/provisioning-manager on Linux) and identify the executable or service running the application. Check for processes named 'ProvisioningManager', 'ppm', or similar in the system process list.
    Affected if The software is installed and running on the system.
  2. Determine installed version
    Run 'ProvisioningManager --version' from the installation bin directory, or check the 'About' / 'Version' information within the application GUI if accessible. Alternatively, inspect the manifest file, installer logs, or the main JAR/EXE file properties for version metadata.
    Affected if The version cannot be determined or falls within an unpatched release range.
  3. Identify XML configuration file processing
    Review application logs and configuration directories for evidence that the software accepts, imports, or parses XML files from network devices. Look for file import features, configuration backup/restore functions, or device onboarding processes that accept XML input.
    Affected if The application parses XML files from network devices or external sources.
  4. Verify XML parser external entity configuration
    Inspect the application's XML parser configuration files (such as parser settings, XML factories configuration, or security policy files) for whether external entity processing is explicitly disabled. Check for settings like 'XMLConstants.FEATURE_SECURE_PROCESSING', 'DISABLE_DOCTYPE_DECL', or similar security flags.
    Affected if External entity processing is not explicitly disabled or the configuration cannot be located.
  5. Review network exposure
    Determine if the Provisioning Manager service listens on exposed network interfaces (check listening ports and binding addresses in configuration). Verify whether unauthenticated network devices can submit configuration files to the service.
    Affected if The service is reachable from untrusted networks and accepts XML input without authentication.

A system is affected if Lantronix Provisioning Manager is installed, accepts XML configuration files from network devices, and does not have external entity processing explicitly disabled in its XML parser configuration.

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

Apply vendor-provided patches when available; until then, disable XML external entity processing in the application's XML parser configuration and restrict network access to trusted devices only.

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing4.0 h
  • Review / QA2.0 h
15.0 hours of engineering $2,640
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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-2025-7766 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
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  • Version or environment caveats, and links to real fixes
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