CVE-2021-27504

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

Texas Instruments devices running FREERTOS, malloc returns a valid pointer to a small buffer on extremely large values, which can trigger an integer overflow vulnerability in 'malloc' for FreeRTOS, resulting in code execution.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-190

Affected software

No affected versions have been published.

Timeline

Published
Nov 21, 2023
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-27504: High severity, CVSS 7.8 | Vulnix