From: g2s <g2s@riseup.net>
   [1]http://www.linksys.com/us/support-article?articleNum=263800
   from that url
   >Linksys issues security advisory following discovery of CIA
   exploitation
   >Solution
   >If users believe their router firmware may have been compromised,
   Linksys recommends that users download the latest available firmware
   from [2]http://www.linksys.com/support/ and update your router.

   >After the update, please perform a factory reset to ensure no remnants
   of the compromise remain.  Instructions on how to do a factory reset
   can be found [3]here.  If users are not able to perform a firmware
   update or receive an error message during the update, please contact
   customer support for further instructions.
   [4]Linksys Official Support - Linksys CherryBlossom Advisory
   -----------------
   It isn't clear, but I don't see any indication that these remedial
   processes actually inform the owner of the router if it has been
   compromised.  Is that an accidental omission, or intentional?
                   Jim Bell
   >https://wikileaks.org/vault7/#Cherry%20Blossom

References

   1. http://www.linksys.com/us/support-article?articleNum=263800
   2. http://www.linksys.com/support/
   3. http://kb.linksys.com/support-article?articleNum=139791#a
   4. http://www.linksys.com/us/support-article?articleNum=263800