CVE-2021-27504

HIGH EPSS 19.7%
Published Nov 21, 20232y ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
High
Find Similar
Published Nov 21, 2023 2y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
19.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-190 Integer Overflow or Wraparound Numeric Error

Affected Products 6

VendorProductVersionRange
amazonfreertos10.4.1any
tisimplelink_cc13xx_software_development_kit* <4.40.00
tisimplelink_cc26xx_software_development_kit* <4.40.00
tisimplelink_cc32xx_software_development_kit* <4.10.03
tisimplelink_msp432e401y*any
tisimplelink_msp432e411y*any

References 2

  • cisa.gov https://www.cisa.gov/news-events/ics-advisories/icsa-21-119-04
    Third Party AdvisoryUS Government Resource
  • ti.com https://www.ti.com/tool/TI-RTOS-MCU
    Product

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.