CVE-2021-27421

9.8 criticalEPSS 0.9%

Critical (9.8) in nxp mcuxpresso software development kit. EPSS 0.9% chance of exploitation in the next 30 days.

NXP MCUXpresso SDK versions prior to 2.8.2 are vulnerable to integer overflow in SDK_Malloc function, which could allow to access memory locations outside the bounds of a specified array, leading to unexpected behavior such segmentation fault when assigning a particular block of memory from the heap via malloc.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)
CWE: CWE-190
Published: 2022-05-03
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

nxp:mcuxpresso_software_development_kit

References

https://mcuxpresso.nxp.com/en/welcome
https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04
https://mcuxpresso.nxp.com/en/welcome
https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04

Check your stack JSON