CVE-2020-8336: Lenovo Thinkpad e14 Firmware

Medium severity, CVSS 6.8. EPSS: 0.3% chance of exploitation in the next 30 days.

Lenovo implemented Intel CSME Anti-rollback ARB protections on some ThinkPad models to prevent roll back of CSME Firmware in flash.

Affected products

  • Lenovo Thinkpad e14 Firmware: before 2020-07-10 (fixed in 2020-07-10)
  • Lenovo Thinkpad e15 Firmware: before 2020-07-10 (fixed in 2020-07-10)
  • Lenovo Thinkpad e490 Firmware: before 2020-07-10 (fixed in 2020-07-10)
  • Lenovo Thinkpad e490s Firmware: before 2020-07-10 (fixed in 2020-07-10)
  • Lenovo Thinkpad e590 Firmware: before 2020-07-10 (fixed in 2020-07-10)
  • Lenovo Thinkpad l13 1st Gen Firmware: before 2020-07-10 (fixed in 2020-07-10)
  • Lenovo Thinkpad l1415 Gen 1 Firmware: before 2020-07-10 (fixed in 2020-07-10)
  • Lenovo Thinkpad l390 Yoga Firmware: before 2020-07-10 (fixed in 2020-07-10)
  • Lenovo Thinkpad l490 Firmware: before 2020-07-10 (fixed in 2020-07-10)
  • Lenovo Thinkpad l590 Firmware: before 2020-07-10 (fixed in 2020-07-10)
  • Lenovo Thinkpad p1 (20mx) Firmware: before n2eet47w (fixed in n2eet47w)
  • Lenovo Thinkpad p1 (20qx) Firmware: before n2oet44w (fixed in n2oet44w)
  • Lenovo Thinkpad p43s (20rx) Firmware: before n2iet88w (fixed in n2iet88w)
  • Lenovo Thinkpad p52 (20mx) Firmware: before n2cet51w-1.34 (fixed in n2cet51w-1.34)
  • Lenovo Thinkpad p53 (20qx) Firmware: before n2net37w (fixed in n2net37w)
  • Lenovo Thinkpad p53s (20nx) Firmware: before n2iet88w (fixed in n2iet88w)
  • Lenovo Thinkpad p72 (20mx) Firmware: before n2cet51w (fixed in n2cet51w)
  • Lenovo Thinkpad p73 (20qx) Firmware: before n2net37w (fixed in n2net37w)
  • Lenovo Thinkpad r14 Firmware: before 2020-07-10 (fixed in 2020-07-10)
  • Lenovo Thinkpad r490 Firmware: before 2020-07-10 (fixed in 2020-07-10)
  • Lenovo Thinkpad r590 Firmware: before 2020-07-10 (fixed in 2020-07-10)
  • Lenovo Thinkpad s2 Yoga 4th Gen Firmware: before 2020-07-10 (fixed in 2020-07-10)
  • Lenovo Thinkpad s3 Firmware: before 2020-07-10 (fixed in 2020-07-10)
  • Lenovo Thinkpad s3 Gen 2 Firmware: before 2020-07-10 (fixed in 2020-07-10)
  • Lenovo Thinkpad t490 (20nx) Firmware: before n2iet88w (fixed in n2iet88w)
  • and 13 more

Published 2020-06-09. Last modified 2026-06-17.