Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2021-27504


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.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.4, requiring local system access to exploit but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 6 products from amazon, from ti, from ti and 3 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2023, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2023-11-21T18:15:07.713

Last Modified

2024-11-21T05:58:07.470

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.4 (HIGH)

Weaknesses
  • Type: Secondary
    CWE-190
  • Type: Primary
    CWE-190

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System amazon freertos 10.4.1 Yes
Application ti simplelink_cc13xx_software_development_kit < 4.40.00 Yes
Application ti simplelink_cc26xx_software_development_kit < 4.40.00 Yes
Application ti simplelink_cc32xx_software_development_kit < 4.10.03 Yes
Application ti simplelink_msp432e401y - Yes
Application ti simplelink_msp432e411y - Yes

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For amazon's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.