VULNERABILITY INTELLIGENCE

CVE-2021-27417

CVSS score4.6 MEDIUM

EPSS probability0.60%

CISA KEVNot currently listed

Published2022-05-03

Last modified2026-06-17

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

Description

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.

Weakness classification

ics-cert@hq.dhs.gov: CWE-190
nvd@nist.gov: CWE-190

Primary references

ics-cert@hq.dhs.gov — Permissions Required, Vendor Advisory
ics-cert@hq.dhs.gov — Third Party Advisory, US Government Resource
af854a3a-2127-422b-91ae-364da2661108 — Permissions Required, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, US Government Resource