Detections
Analytics

CVE-2021-30636

critical

Description

In MediaTek LinkIt SDK before 4.6.1, there is a possible memory corruption due to an integer overflow during mishandled memory allocation by pvPortCalloc and pvPortRealloc.

References

https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04

https://www.cisa.gov/news-events/ics-advisories/icsa-21-119-04

https://www.tenable.com/cyber-exposure/2021-threat-landscape-retrospective

Details

Source: Mitre, NVD

Published: 2022-01-24

Updated: 2026-06-17

Named Vulnerability: BadAlloc

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

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

Severity: Critical

EPSS

EPSS: 0.00222