XML External Entity (XXE)Weakness · CWE-611

CVE-2025-10183

CRITICAL · 9.1 CVSS v3.1 Published 2025-09-09
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
A blind XML External Entity (XXE) injection in the OpenMessaging webservice in TecCom TecConnect 4.1 allows an unauthenticated attacker to exfiltrate arbitrary files to an attacker-controlled server. TecConnect 4.1 is considered end-of-life as of December 2023. Users are advised to upgrade to TecCom Connect 5.

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

A blind XML External Entity (XXE) injection vulnerability exists in the OpenMessaging webservice of TecCom TecConnect 4.1. An unauthenticated attacker can exploit this to exfiltrate arbitrary files from the server to an attacker-controlled server through malicious XML payloads.

MitigationUpgrade to TecCom Connect 5 immediately. As TecConnect 4.1 reached end-of-life in December 2023, no patches will be released. If immediate upgrade is not feasible, disable or restrict access to the OpenMessaging webservice and implement network segmentation.

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
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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 TecCom TecConnect installation
    Check for TecConnect application files, services, or processes on the system. Look for installation directories, running services named 'TecConnect' or 'teccom', or check application logs for TecConnect entries.
    Affected if TecCom TecConnect software is present on the system
  2. Determine installed TecConnect version
    Locate version information in the TecConnect installation (check About dialog, version file, installation logs, or configuration files). Compare the version number to 4.1 or 4.x releases.
    Affected if The installed version is TecConnect 4.1 or any 4.x release (the vulnerability affects 4.1 specifically and likely earlier 4.x versions)
  3. Confirm OpenMessaging webservice is enabled
    Check TecConnect configuration files for OpenMessaging service settings. Look for XML endpoint configurations, SOAP or REST service definitions related to messaging, or examine the running service ports for typical OpenMessaging ports.
    Affected if The OpenMessaging webservice is enabled and running in the TecConnect installation
  4. Assess network exposure of the OpenMessaging endpoint
    Review firewall rules, network ACLs, or reverse proxy configurations to determine if the OpenMessaging XML endpoint is accessible from untrusted networks or the internet. Check if the service binds to non-localhost interfaces.
    Affected if The OpenMessaging XML endpoint is reachable from untrusted network segments or the internet without authentication

You are affected if TecConnect 4.1 is installed with the OpenMessaging webservice enabled and exposed to network access where an unauthenticated attacker could send malicious XML payloads.

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

Upgrade to TecCom Connect 5 immediately. As TecConnect 4.1 reached end-of-life in December 2023, no patches will be released. If immediate upgrade is not feasible, disable or restrict access to the OpenMessaging webservice and implement network segmentation.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation16.0 h
  • Testing8.0 h
  • Review / QA4.0 h
32.0 hours of engineering $5,600
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

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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-2025-10183 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