CVE-2021-31532
mediumpriority · track · 27EPSS 0.005 · 39 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (25)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- https://nvd.nist.gov/vuln/detail/CVE-2021-31532cnnvd
- https://oxide.computer/blog/lpc55/cnnvd
- https://www.nxp.comcnnvd
- https://www.nxp.com/Patchcnnvd
- https://oxide.computer/blog/lpc55/enisa_euvd
- https://www.nxp.comenisa_euvd
- https://oxide.computer/blog/lpc55/ExploitThird Party Advisorynvd
- https://www.nxp.comVendor Advisorynvd
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