The following Intel-based platforms are impacted by this issue. Intel may modify this list at a later time. Please check with your system vendor or equipment manufacturer for more information regarding updates for your system.
Intel® Xeon® Processor E3 v5 Family
Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis.
Intel® Xeon® Processor E3 v3 Family
Moritz Lipp, Michael Schwarz, Daniel Gruss, Stefan Mangard from Graz University of Technology
Intel® Xeon® Processor E5 v3 Family
Intel would like to thank Jann Horn with Google Project Zero for his original report and for working with the industry on coordinated disclosure.
Intel® Core™ i5 processor (45nm and 32nm)
Intel® Core™ i7 processor (45nm and 32nm)
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This includes the release of updated Intel microprocessor microcode to our customers and partners. Details can be found here:
Intel® Xeon® Processor E3 v4 Family
For issues related to Intel managed open source projects, please visit
Intel® Xeon Phi™ Processor 3200, 5200, 7200 Series
5th generation Intel® Core™ processors
-mail address should only be used for reporting security issues.
Intel® Core™ i3 processor (45nm and 32nm)
Intel® Xeon® Processor E7 v3 Family
For non-Intel based systems please contact your system manufacturer or microprocessor vendor (AMD, ARM, Qualcomm, etc.) for updates.
Thomas Prescher and Werner Haas from Cyberus Technology, Germany
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Please provide as much information as possible, including:
UpdatedRecommendations Section04/04/2018
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 facts about these new exploits, and steps you can take to help protect your systems and information please visit:
6th generation Intel® Core™ processors
Intel® Core™ X-series Processor Family for Intel® X299 platforms
Intel® Xeon® Processor E3 v2 Family
Today a team of security researchersdisclosedseveral software analysis methods that, when used for malicious purposes, have the potential to improperly gather sensitive data from many types of computing devices with many different vendors processors and operating systems.
Intel is committed to product and customer security and to responsible disclosure. We worked closely with many other technology companies, including AMD, ARM Holdings and several operating system vendors, to develop an industry-wide approach to mitigate this issue promptly and constructively.
End users and systems administrators should check with their OEM and system software vendors and apply any available updates as soon as practical.
Intel® Xeon® Processor E7 v2 Family
4th generation Intel® Core™ processors
Intel would also like to thank the following researchers for working with us on coordinated disclosure.
8th generation Intel® Core™ processors
Intel® Xeon® Processor Scalable Family
3rd generation Intel® Core™ processors
2nd generation Intel® Core™ processors
Intel® Xeon® Processor E7 v4 Family
7th generation Intel® Core™ processors
Intel® Xeon® Processor E5 v2 Family
Intel has worked with operating system vendors, equipment manufacturers, and other ecosystem partners to develop platform firmware and software updates that can help protect systems from these methods.
Intel® Xeon® Processor E3 v6 Family
Intel® Xeon® Processor E5 v4 Family
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Intel® Core™ X-series Processor Family for Intel® X99 platforms
If you have information about a security issue or vulnerability with anIntel branded product or technology, please send an e-mail . Encrypt sensitive information using ourPGP public key.
Intel® Core™ M processor family (45nm and 32nm)
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Other variants of this side-channel analysis are being addressed by Operating System and Software Vendors. For more details see:
Paul Kocher, Daniel Genkin from University of Pennsylvania and University of Maryland, Mike Hamburg from Rambus, Cryptography Research Division and Yuval Yarom from University of Adelaide and Data61.
