CVE-2021-27429

HIGH EPSS 19.3%

Published Nov 20, 20232y ago · Modified Jun 17, 20262w ago

7.8 CVSS 3.1

High

Published Nov 20, 2023 2y ago

Last Modified Jun 17, 2026 2w ago

Description

Texas Instruments TI-RTOS returns a valid pointer to a small buffer on extremely large values. This can trigger an integer overflow vulnerability in 'HeapTrack_alloc' and result 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

19.3% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-190 Integer Overflow or Wraparound Numeric Error

Affected Products 14

Vendor	Product	Version	Range
ti	real-time_operating_system	*	any
ti	cc3200	*	any
ti	cc3220r	*	any
ti	cc3220s	*	any
ti	cc3220sf	*	any
ti	cc3230s	*	any
ti	cc3230sf	*	any
ti	cc3235s	*	any
ti	cc3235sf	*	any
ti	simplelink_cc13xx_software_development_kit	*	<4.40.00
ti	simplelink_cc26xx_software_development_kit	*	<4.40.00
ti	simplelink_cc32xx_software_development_kit	*	<4.10.03
ti	simplelink_msp432e401y	*	any
ti	simplelink_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.