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  • Spectre vulnerability need help.

    Home Forums AskWoody support PC hardware Spectre vulnerability need help.


    This topic contains 7 replies, has 5 voices, and was last updated by

     Bill C. 8 months, 3 weeks ago.

    • Author
    • #184876 Reply


      Is a manufacture of a motherboard have to release compatible bios update to somehow inject or support/update the new microcode of a cpu or is it possible to do this directly without updating the bios ? i’m a little confused of what steps should i take because i have a processor that have a new microcode update available but the manufacturer of the motherboard don’t have new bios updates or a any solution to this problem they basically don’t release anything since 2015. i have Intel Core i5 4460 and MSI NIGHTBLADE B85C motherboard and i’m affected by a Spectre vulnerability.

      what i can do ?

      Edit to remove HTML. Please use the “text” tab in the entry box when you copy/paste.

    • #185181 Reply

      AskWoody MVP

      It’s possible that Microsoft will issue a Windows update that will temporarily update the microcode upon every Windows boot. See Summary of Intel microcode updates and Protect your Windows devices against Spectre and Meltdown.

    • #185188 Reply

      AskWoody Plus

      Right now and if you are not running Windows 10, then there is not anything which you can do to directly mitigate Spectre since your motherboard apparently is not getting any microcode updates from your motherboard’s manufacturer.

      On the other hand, there are other steps which you can take to hopefully prevent any Spectre attacks. Note that at present, there are no known and provable Spectre exploits which have been seen in the wild. This does not mean that they may not exist. This merely means that none have been verified at the present time. Do note that there are dozens of attempted Meltdown exploits in the wild, yet none of them appear to be successful at the present time.

      The upshot is that for Meltdown, the most likely attack vector appears to be via Javascript in a web browser. The latest versions of Chrome and Firefox now have built in mitigations which will prevent successful Meltdown attacks via these web browsers. Alternatively, Meltdown could be expoited if you download and install a malicious program.

      Spectre is a somewhat different animal in terms of exploitation.

      Your best defense at the present time is to be very wary of installing any new programs on your computer. Yeah, it should be okay to update installed programs which are from companies and sources which you trust. Yet be wary about installing any new programs — especially from sources which you are not familiar with.

      Finally, use a good antivirus product to further protect your computer.

      As MrBrian mentions, hopefully Microsoft will step up to the plate and offer temporary CPU microcode updates which load upon every boot up of Windows, yet so far Microsoft is only doing this for Windows 10. On a final note, it is unclear if Intel’s round two of their released microcode updates can mitigate against the newly discovered Spectre-like BranchScope vulnerability which is similar to Spectre.

      This is pretty much the best advice which I can offer at this time.

      • #185309 Reply

        AskWoody MVP

        Only the 1607, 1703 & 1709 releases of Windows 10 have Intel CPU microcode updates-

        KB4090007 for v1709, KB4091663 for v1703 and KB4091664 for v1607

        no Intel microcode updates for the “Threshold” (1507 & 1511) releases of Windows 10 are available since both these versions are out of support.

        • This reply was modified 9 months ago by
    • #185329 Reply


      but what about this : the microcode is listed Linux* Processor Microcode for a download can linux users simple flash this to the cpu somehow or what for this is ?

    • #187652 Reply

      Bill C.
      AskWoody Lounger
      • #187657 Reply

        AskWoody Plus

        But that is only for Win 10 computers, as far as I am aware. MS seems to be leaving all Win 8x and Win 7 users in the trash bin.

    • #187667 Reply

      Bill C.
      AskWoody Lounger

      But that is only for Win 10 computers, as far as I am aware. MS seems to be leaving all Win 8x and Win 7 users in the trash bin.

      I know MrBrian was posting about specific MS issued microcode for Win10 builds. Since OP did not specify his version of Windows, but did specify his CPU, I posted only about what microcode Intel has indicated it would release. I could find nothing on the Intel produced PDF about microcode development/updates indicating Win10 only. My reply was pointing to the post about this specific Intel produced document:

      However if that is the case, and it is Win10 specific, I really doubt that earlier versions of Windows will ever see something than Windows 10 does not get. I suspect some of the older tech on earlier version of Windows will be stuck.

      If this muddies the water, (already murky enough) or I misunderstood, please let me know and I will gladly delete the previous post.

      • This reply was modified 8 months, 3 weeks ago by
         Bill C..

    Please follow the -Lounge Rules- no personal attacks, no swearing, and politics/religion are relegated to the Rants forum.

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