1756 Enbt\/a FirmwareOperating system · Rockwellautomation

CVE-2010-2965

CRITICAL · 9.8 CVSS v3.1 Published 2010-08-05
Fix available
A fix is available. Upgrade to after 6.9.4.12 or later.
See remediation →
100/100
Remediation priority · Urgent
High EPSS 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
The WDB target agent debug service in Wind River VxWorks 6.x, 5.x, and earlier, as used on the Rockwell Automation 1756-ENBT series A with firmware 3.2.6 and 3.6.1 and other products, allows remote attackers to read or modify arbitrary memory locations, perform function calls, or manage tasks via requests to UDP port 17185, a related issue to CVE-2005-3804.

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

The WDB (Wind Debug) target agent debug service in Wind River VxWorks 6.x, 5.x and earlier contains an unauthenticated remote code execution vulnerability. The debug service listens on UDP port 17185 and allows remote attackers to read/write arbitrary memory locations, perform function calls, and manage tasks, effectively providing complete control over the affected device.

MitigationBlock UDP port 17185 at network perimeter firewalls, disable the WDB debug service if not required for development, and apply vendor firmware updates for affected devices such as the Rockwell Automation 1756-ENBT series.

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
1756 Enbt\/a FirmwareOperating system
Affected:= 3.2.6= 3.6.1
VxworksOperating system
Affected:<= 6.9.4.12

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
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 checks

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

  1. Verify UDP port 17185 is listening
    Run a network port scan or check listening ports on the device: `netstat -anu | grep 17185` or `nmap -sU -p 17185 <target>`
    Affected if UDP port 17185 is open and accepting connections - this indicates the WDB debug service is running
  2. Identify the VxWorks version
    Query the device for its OS version through SNMP, HTTP management interface, or proprietary protocols: `snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1991.1` or check firmware/diagnostics pages
    Affected if The installed VxWorks version is 6.x, 5.x, or earlier, or falls at or below 6.9.4.12
  3. Identify 1756-ENBT/A firmware version
    For Rockwell Automation devices, query the module via EtherNet/IP or check the control logix firmware revision: `svcl -d <controller> -m 1756-ENBT` or use RSLinx to view module revision
    Affected if The 1756-ENBT/A firmware is exactly version 3.2.6 or 3.6.1
  4. Confirm network accessibility of the debug port
    Verify the device with port 17185 exposed is reachable from network segments outside the trusted development zone
    Affected if UDP port 17185 is reachable from untrusted network segments - the vulnerability is remotely exploitable

A system is affected if it runs VxWorks 6.x/5.x or <= 6.9.4.12, or uses 1756-ENBT/A firmware 3.2.6 or 3.6.1, and has UDP port 17185 open and 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.

From vendor data
Upgrade available Upgrade to a release after 6.9.4.12
Interim mitigation

Block UDP port 17185 at network perimeter firewalls, disable the WDB debug service if not required for development, and apply vendor firmware updates for affected devices such as the Rockwell Automation 1756-ENBT series.

Fix this in 1756 Enbt\/a Firmware Scoped from the published advisory
  • Consultation8.0 h
  • Implementation16.0 h
  • Testing12.0 h
  • Review / QA4.0 h
40.0 hours of engineering $7,000
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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-2010-2965 in production — separate from our analysis above.

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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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