Advisory Published
Updated

CVE-2021-31532

First published: Thu May 06 2021(Updated: )

NXP LPC55S6x microcontrollers (0A and 1B), i.MX RT500 (silicon rev B1 and B2), i.MX RT600 (silicon rev A0, B0), LPC55S6x, LPC55S2x, LPC552x (silicon rev 0A, 1B), LPC55S1x, LPC551x (silicon rev 0A) and LPC55S0x, LPC550x (silicon rev 0A) include an undocumented ROM patch peripheral that allows unsigned, non-persistent modification of the internal ROM.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Nxp Lpc55s69jbd100 Firmware
Nxp Lpc55s69jbd100=0a
Nxp Lpc55s69jbd100=1b
Nxp Lpc55s66jbd100 Firmware
Nxp Lpc55s66jbd100=0a
Nxp Lpc55s66jbd100=1b
Nxp Lpc55s69jev98 Firmware
Nxp Lpc55s69jev98=0a
Nxp Lpc55s69jev98=1b
Nxp Lpcs66jev98 Firmware
Nxp Lpcs66jev98=0a
Nxp Lpcs66jev98=1b
Nxp Lpc55s69jbd64 Firmware
Nxp Lpc55s69jbd64=0a
Nxp Lpc55s69jbd64=1b
Nxp Lpcs66jbd64 Firmware
Nxp Lpcs66jbd64=0a
Nxp Lpcs66jbd64=1b
Nxp I.mx Rt500 Firmware
Nxp I.mx Rt500=b1
Nxp I.mx Rt500=b2
Nxp I.mx Rt600 Firmware
Nxp I.mx Rt600=a0
Nxp I.mx Rt600=b0
Nxp Lpc55s28 Firmware
Nxp Lpc55s28=0a
Nxp Lpc55s28=1b
Nxp Lpc55s26 Firmware
Nxp Lpc55s26=0a
Nxp Lpc55s26=1b
Nxp Lpc5528 Firmware
Nxp Lpc5528=0a
Nxp Lpc5528=1b
Nxp Lpc5526 Firmware
Nxp Lpc5526=0a
Nxp Lpc5526=1b
Nxp Lpc55s16jbd100 Firmware
Nxp Lpc55s16jbd100=0a
Nxp Lpc55s16jev98 Firmware
Nxp Lpc55s16jev98=0a
Nxp Lpc55s16jbd64 Firmware
Nxp Lpc55s16jbd64=0a
Nxp Lpc55s14jbd100 Firmware
Nxp Lpc55s14jbd100=0a
Nxp Lpc55s14jbd64 Firmware
Nxp Lpc55s14jbd64=0a
Nxp Lpc5516jbd100 Firmware
Nxp Lpc5516jbd100=0a
Nxp Lpc5516jev98 Firmware
Nxp Lpc5516jev98=0a
Nxp Lpc5516jbd64 Firmware
Nxp Lpc5516jbd64=0a
Nxp Lpc5514jbd100 Firmware
Nxp Lpc5514jbd100=0a
Nxp Lpc5514jbd64 Firmware
Nxp Lpc5514jbd64=0a
Nxp Lpc5512jbd100 Firmware
Nxp Lpc5512jbd100=0a
Nxp Lpc5512jbd64 Firmware
Nxp Lpc5512jbd64=0a

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Frequently Asked Questions

  • What is the severity of CVE-2021-31532?

    The severity of CVE-2021-31532 is medium with a CVSS score of 6.8.

  • Which microcontrollers are affected by CVE-2021-31532?

    NXP LPC55S6x microcontrollers (0A and 1B), i.MX RT500 (silicon rev B1 and B2), i.MX RT600 (silicon rev A0, B0), LPC55S2x, LPC552x (silicon rev 0A, 1B), LPC55S1x, LPC551x (silicon rev 0A), LPC55S0x, and LPC550x are affected by CVE-2021-31532.

  • What is the vulnerability description of CVE-2021-31532?

    CVE-2021-31532 is a vulnerability found in certain NXP microcontrollers that include an undocumented ROM patch peripheral allowing unsigned firmware to be loaded.

  • How can I fix CVE-2021-31532?

    There is currently no known fix for CVE-2021-31532. It is recommended to follow the mitigation steps provided by NXP in their security advisory.

  • Where can I find more information about CVE-2021-31532?

    More information about CVE-2021-31532 can be found in the blog post by Oxide Computer and the security advisory by NXP.

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