Cyber Resilience

CVE-2021-30636

Critical

Published: 24 January 2022

Published
24 January 2022
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0034 56.7th percentile
Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-30636 is a critical-severity Integer Overflow or Wraparound (CWE-190) vulnerability in Mediatek Linkit Software Development Kit. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 43.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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.

CWE(s)
CWE-190

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

mediatek
linkit software development kit
≤ 4.6.1

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References