CVE-2021-27417: Ecoscentric Ecospro

Critical severity, CVSS 9.8. EPSS: 0.6% chance of exploitation in the next 30 days.

eCosCentric eCosPro RTOS Versions 2.0.1 through 4.5.3 are vulnerable to integer wraparound in function calloc (an implementation of malloc). The unverified memory assignment can lead to arbitrary memory allocation, resulting in a heap-based buffer overflow.

Affected products

• Ecoscentric Ecospro: from 2.0.1, up to and including 4.5.3

Published 2022-05-03. Last modified 2026-06-17.