The latest security information on Intel® products.

Stack overflow vulnerability in Wind River VxWorks

Intel ID:  INTEL-SA-00064
Product family:  Wind River VxWorks
Impact of vulnerability Elevation of Privilege
Severity rating Critical
Original release:  Nov 01, 2016
Last revised:  Nov 01, 2016


WindRiver is releasing mitigations for a privilege escalation issue. This issue affects versions of Wind River VxWorks products. The issue being mitigated is a method to execute arbitrary code without user interactions.


Anonymous remote attackers can cause a stack overflow, which can be used to obtain remote code execution on affected devices running vulnerable VxWorks versions without any user interactions.

The table below provides the list of WindRiver VxWorks product versions, impacted by the issue as well as the mitigated versions and update source for the fix. If the customer system has VxWorks version lower than one listed in the table, the customer is strongly recommended to upgrade the VxWorks to the version listed below, or later.

Affected products:

Product Impacted versions Mitigated versions Update source
VxWorks 6.x 6.5 – or later Wind River product installer
VxWorks 6.x 6.5 – 6.9.3 or later Wind River product installer
VxWorks 7 ipnet_dnsc- or earlier ipnet_dnsc- or later Wind River product installer


Intel strongly recommends customers using impacted versions of WindRiver VxWorks to upgrade to the latest version listed in the table above.


Alex Wheeler, David Barksdale – Exodus Intelligence

Related Information: 

See VxWorks security alerts on &

Revision history:






Initial Release

Legal Notices and Disclaimers

Intel provides these materials as-is, with no express or implied warranties.

All products, dates, and figures specified are preliminary based on current expectations, and are subject to change without notice.

Intel, processors, chipsets, and desktop boards may contain design defects or errors known as errata, which may cause the product to deviate from published specifications. Current characterized errata are available on request.

Intel technologies’ features and benefits depend on system configuration and may require enabled hardware, software or service activation. Performance varies depending on system configuration. No product or component can be absolutely secure. Check with your system manufacturer or retailer or learn more at

Some results have been estimated or simulated using internal Intel analysis or architecture simulation or modeling, and provided to you for informational purposes. Any differences in your system hardware, software or configuration may affect your actual performance.

Intel and the Intel logo are trademarks of Intel Corporation in the United States and other countries.

*Other names and brands may be claimed as the property of others.
Copyright © Intel Corporation 2022

Report a Vulnerability

If you have information about a security issue or vulnerability with an Intel branded product or technology, please send an e-mail to Encrypt sensitive information using our PGP public key.

Please provide as much information as possible, including:

  • The products and versions affected
  • Detailed description of the vulnerability
  • Information on known exploits

A member of the Intel Product Security Team will review your e-mail and contact you to collaborate on resolving the issue. For more information on how Intel works to resolve security issues, see:

For issues related to Intel's external web presence ( and related subdomains), please contact Intel's External Security Research team.

Need product support?

If you...

  • Have questions about the security features of an Intel product
  • Require technical support
  • Want product updates or patches

Please visit Support & Downloads.