SEVD-2025-014-03
Vulnerability from csaf_se - Published: 2025-01-14 05:00 - Updated: 2025-08-12 04:00Summary
Wind River VxWorks DHCP Server Vulnerability
Notes
General Security Recommendations
We strongly recommend the following industry cybersecurity best practices.
https://www.se.com/us/en/download/document/7EN52-0390/
* Locate control and safety system networks and remote devices behind firewalls and isolate them from the business network.
* Install physical controls so no unauthorized personnel can access your industrial control and safety systems, components, peripheral equipment, and networks.
* Place all controllers in locked cabinets and never leave them in the “Program” mode.
* Never connect programming software to any network other than the network intended for that device.
* Scan all methods of mobile data exchange with the isolated network such as CDs, USB drives, etc. before use in the terminals or any node connected to these networks.
* Never allow mobile devices that have connected to any other network besides the intended network to connect to the safety or control networks without proper sanitation.
* Minimize network exposure for all control system devices and systems and ensure that they are not accessible from the Internet.
* When remote access is required, use secure methods, such as Virtual Private Networks (VPNs). Recognize that VPNs may have vulnerabilities and should be updated to the most current version available. Also, understand that VPNs are only as secure as the connected devices.
For more information refer to the Schneider Electric Recommended Cybersecurity Best Practices document.
For More Information
This document provides an overview of the identified vulnerability or vulnerabilities and actions required to mitigate. For more details and assistance on how to protect your installation, contact your local Schneider Electric representative or Schneider Electric Industrial Cybersecurity Services: https://www.se.com/ww/en/work/solutions/cybersecurity/. These organizations will be fully aware of this situation and can support you through the process.
For further information related to cybersecurity in Schneider Electric’s products, visit the company’s cybersecurity support portal page: https://www.se.com/ww/en/work/support/cybersecurity/overview.jsp
LEGAL DISCLAIMER
THIS NOTIFICATION DOCUMENT, THE INFORMATION CONTAINED HEREIN, AND ANY MATERIALS LINKED FROM IT (COLLECTIVELY, THIS “NOTIFICATION”) ARE INTENDED TO HELP PROVIDE AN OVERVIEW OF THE IDENTIFIED SITUATION AND SUGGESTED MITIGATION ACTIONS, REMEDIATION, FIX, AND/OR GENERAL SECURITY RECOMMENDATIONS AND IS PROVIDED ON AN “AS-IS” BASIS WITHOUT WARRANTY OR GUARANTEE OF ANY KIND. SCHNEIDER ELECTRIC DISCLAIMS ALL WARRANTIES RELATING TO THIS NOTIFICATION, EITHER EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. SCHNEIDER ELECTRIC MAKES NO WARRANTY THAT THE NOTIFICATION WILL RESOLVE THE IDENTIFIED SITUATION. IN NO EVENT SHALL SCHNEIDER ELECTRIC BE LIABLE FOR ANY DAMAGES OR LOSSES WHATSOEVER IN CONNECTION WITH THIS NOTIFICATION, INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF SCHNEIDER ELECTRIC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. YOUR USE OF THIS NOTIFICATION IS AT YOUR OWN RISK, AND YOU ARE SOLELY LIABLE FOR ANY DAMAGES TO YOUR SYSTEMS OR ASSETS OR OTHER LOSSES THAT MAY RESULT FROM YOUR USE OF THIS NOTIFICATION. SCHNEIDER ELECTRIC RESERVES THE RIGHT TO UPDATE OR CHANGE THIS NOTIFICATION AT ANY TIME AND IN ITS SOLE DISCRETION
About Schneider Electric
At Schneider, we believe access to energy and digital is a basic human right. We empower all to do more with less, ensuring Life Is On everywhere, for everyone, at every moment.
We provide energy and automation digital solutions for efficiency and sustainability. We combine world-leading energy technologies, real-time automation, software and services into integrated solutions for Homes, Buildings, Data Centers, Infrastructure and Industries.
We are committed to unleash the infinite possibilities of an open, global, innovative community that is passionate with our Meaningful Purpose, Inclusive and Empowered values.
www.se.com
Overview
Schneider Electric is aware of a vulnerability within the VxWorks Operating System from Wind
River. Many vendors, including Schneider Electric, embed VxWorks in their offers.
If successfully exploited, these vulnerabilities could result in loss of confidentiality, integrity and
denial of service in the BMENOC0321 https://www.se.com/ww/en/product/BMENOC0321/m580-noc-control/ , BMECRA https://www.se.com/ww/en/product/BMECRA31210 and 140CRA products which are
communication modules for Modicon M580 and Quantum controllers.
Failure to apply the mitigations and remediations provided below may risk stack overflow attack,
which could result in loss of confidentiality, integrity and denial of service of the device.
Vulnerability Details
Vulnerabilities disclosed by Wind River VxWorks product impact Schneider Electric Communication modules. Additional information about the vulnerability can be found at: https://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2021-29999
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"notes": [
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"category": "general",
"text": "We strongly recommend the following industry cybersecurity best practices.\n\nhttps://www.se.com/us/en/download/document/7EN52-0390/\n* Locate control and safety system networks and remote devices behind firewalls and isolate them from the business network.\n* Install physical controls so no unauthorized personnel can access your industrial control and safety systems, components, peripheral equipment, and networks.\n* Place all controllers in locked cabinets and never leave them in the \u201cProgram\u201d mode.\n* Never connect programming software to any network other than the network intended for that device.\n* Scan all methods of mobile data exchange with the isolated network such as CDs, USB drives, etc. before use in the terminals or any node connected to these networks.\n* Never allow mobile devices that have connected to any other network besides the intended network to connect to the safety or control networks without proper sanitation.\n* Minimize network exposure for all control system devices and systems and ensure that they are not accessible from the Internet.\n* When remote access is required, use secure methods, such as Virtual Private Networks (VPNs). Recognize that VPNs may have vulnerabilities and should be updated to the most current version available. Also, understand that VPNs are only as secure as the connected devices.\nFor more information refer to the Schneider Electric Recommended Cybersecurity Best Practices document. \n",
"title": "General Security Recommendations"
},
{
"category": "general",
"text": "This document provides an overview of the identified vulnerability or vulnerabilities and actions required to mitigate. For more details and assistance on how to protect your installation, contact your local Schneider Electric representative or Schneider Electric Industrial Cybersecurity Services: https://www.se.com/ww/en/work/solutions/cybersecurity/. These organizations will be fully aware of this situation and can support you through the process.\nFor further information related to cybersecurity in Schneider Electric\u2019s products, visit the company\u2019s cybersecurity support portal page: https://www.se.com/ww/en/work/support/cybersecurity/overview.jsp",
"title": "For More Information"
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"text": "THIS NOTIFICATION DOCUMENT, THE INFORMATION CONTAINED HEREIN, AND ANY MATERIALS LINKED FROM IT (COLLECTIVELY, THIS \u201cNOTIFICATION\u201d) ARE INTENDED TO HELP PROVIDE AN OVERVIEW OF THE IDENTIFIED SITUATION AND SUGGESTED MITIGATION ACTIONS, REMEDIATION, FIX, AND/OR GENERAL SECURITY RECOMMENDATIONS AND IS PROVIDED ON AN \u201cAS-IS\u201d BASIS WITHOUT WARRANTY OR GUARANTEE OF ANY KIND. SCHNEIDER ELECTRIC DISCLAIMS ALL WARRANTIES RELATING TO THIS NOTIFICATION, EITHER EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. SCHNEIDER ELECTRIC MAKES NO WARRANTY THAT THE NOTIFICATION WILL RESOLVE THE IDENTIFIED SITUATION. IN NO EVENT SHALL SCHNEIDER ELECTRIC BE LIABLE FOR ANY DAMAGES OR LOSSES WHATSOEVER IN CONNECTION WITH THIS NOTIFICATION, INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF SCHNEIDER ELECTRIC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. YOUR USE OF THIS NOTIFICATION IS AT YOUR OWN RISK, AND YOU ARE SOLELY LIABLE FOR ANY DAMAGES TO YOUR SYSTEMS OR ASSETS OR OTHER LOSSES THAT MAY RESULT FROM YOUR USE OF THIS NOTIFICATION. SCHNEIDER ELECTRIC RESERVES THE RIGHT TO UPDATE OR CHANGE THIS NOTIFICATION AT ANY TIME AND IN ITS SOLE DISCRETION",
"title": "LEGAL DISCLAIMER"
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{
"category": "general",
"text": "At Schneider, we believe access to energy and digital is a basic human right. We empower all to do more with less, ensuring Life Is On everywhere, for everyone, at every moment.\n\nWe provide energy and automation digital solutions for efficiency and sustainability. We combine world-leading energy technologies, real-time automation, software and services into integrated solutions for Homes, Buildings, Data Centers, Infrastructure and Industries.\n\nWe are committed to unleash the infinite possibilities of an open, global, innovative community that is passionate with our Meaningful Purpose, Inclusive and Empowered values.\n\nwww.se.com ",
"title": "About Schneider Electric"
},
{
"category": "summary",
"text": "Schneider Electric is aware of a vulnerability within the VxWorks Operating System from Wind\r\nRiver. Many vendors, including Schneider Electric, embed VxWorks in their offers.\r\nIf successfully exploited, these vulnerabilities could result in loss of confidentiality, integrity and\r\ndenial of service in the BMENOC0321 https://www.se.com/ww/en/product/BMENOC0321/m580-noc-control/ , BMECRA https://www.se.com/ww/en/product/BMECRA31210 and 140CRA products which are\r\ncommunication modules for Modicon M580 and Quantum controllers.\r\nFailure to apply the mitigations and remediations provided below may risk stack overflow attack, \r\nwhich could result in loss of confidentiality, integrity and denial of service of the device. ",
"title": "Overview"
},
{
"category": "general",
"text": "Vulnerabilities disclosed by Wind River VxWorks product impact Schneider Electric Communication modules. Additional information about the vulnerability can be found at: https://support2.windriver.com/index.php?page=cve\u0026on=view\u0026id=CVE-2021-29999",
"title": "Vulnerability Details"
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"references": [
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"title": "Wind River VxWorks DHCP Server Vulnerability",
"tracking": {
"current_release_date": "2025-08-12T04:00:00.000Z",
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"date": "2025-01-14T05:00:00.000Z",
"number": "1.0.0",
"summary": "Original Release"
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{
"date": "2025-04-08T04:00:00.000Z",
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"summary": "A remediation is now available for \r\nBMECRA31210, BMXCRA31200, and \r\nBMXCRA31210"
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{
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"number": "3.0.0",
"summary": "Remediations are available for 140CRA31200 (Quantum RIO Drop) and 140CRA31908 (M580 Quantum S908 RIO Drop Adapter)"
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"status": "final",
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}
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"vulnerabilities": [
{
"cve": "CVE-2021-29999",
"cwe": {
"id": "CWE-787",
"name": "Out-of-bounds Write"
},
"notes": [
{
"category": "description",
"text": "An issue was discovered in Wind River VxWorks through 6.8. There is a possible stack overflow in dhcp server.",
"title": "CVE Description"
}
],
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"details": "Version SV1.10 of BMENOC0321 includes a fix for this \r\nvulnerability and is available for download here:\r\nhttps://www.se.com/ww/en/product/BMENOC0321/m580-\r\nnoc-control/",
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{
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"details": "Version SV02.80 of BMECRA31210, BMXCRA31200, \r\nBMXCRA31210 includes a fix for these vulnerabilities and \r\nis available for download here:\r\nhttps://www.se.com/ww/en/product-country-selector/?pageType=product\u0026sourceId=BMXCRA31210",
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},
{
"category": "mitigation",
"details": "If customers choose not to apply the remediation provided above, they should immediately apply the following mitigations to reduce the risk of exploit: \r\n\u2022 Implement a firewall to allow only authorized traffic \r\non 67/UDP and 68/UDP ports",
"product_ids": [
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"1",
"2",
"3",
"4",
"5",
"11"
]
}
],
"title": "CVE-2021-29999"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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