CVE-2021-27435

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

ARM mbed product Version 6.3.0 is vulnerable to integer wrap-around in malloc_wrapper function, which can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or a remote code injection/execution.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-190

Affected software

Vendor	Product	Versions
ARM	mbed	6.3.0

References

https://github.com/ARMmbed/mbed-os/pull/14408Exploit, Issue Tracking, Patch, Third Party Advisory
https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04Third Party Advisory, US Government Resource
https://github.com/ARMmbed/mbed-os/pull/14408Exploit, Issue Tracking, Patch, Third Party Advisory
https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04Third Party Advisory, US Government Resource

Timeline

Published: May 3, 2022
Last modified: Jun 17, 2026
NVD status: Modified

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