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Vulnerability record · CVE-2021-22679 · published 7 May 2021

CVE-2021-22679: Ti cc3100 software development kit integer overflow vulnerability

TTi · Cc3100 Software Development Kit

The affected product is vulnerable to an integer overflow while processing HTTP headers, which may allow an attacker to remotely execute code on the SimpleLink Wi-Fi (MSP432E4 SDK: v4.20.00.12 and prior, CC32XX SDK v4.30.00.06 and prior, CC13X0 SDK versions prior to v4.10.03, CC13X2 and CC26XX SDK versions prior to v4.40.00, CC3200 SDK v1.5.0 and prior, CC3100 SDK v1.3.0 and prior).

9.8 CVSS 3.1 Critical EPSS 1.8% · top 23.0% CWE-190 · Integer overflow
9.8CVSS 3.1 base score, v2 7.5
1.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
7Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

The affected product is vulnerable to an integer overflow while processing HTTP headers, which may allow an attacker to remotely execute code on the SimpleLink Wi-Fi (MSP432E4 SDK: v4.20.00.12 and prior, CC32XX SDK v4.30.00.06 and prior, CC13X0 SDK versions prior to v4.10.03, CC13X2 and CC26XX SDK versions prior to v4.40.00, CC3200 SDK v1.5.0 and prior, CC3100 SDK v1.3.0 and prior).

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

Affected products

7 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://us-cert.cisa.gov/ics/advisories/icsa-21-119-01 Third Party AdvisoryUS Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-21-119-01 Third Party AdvisoryUS Government Resource

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2021-22671Ti cc3100 software development kit integer overflow vulnerabilityMultiple integer overflow issues exist while processing long domain names, which may allow an attacker to remotely execute code on the SimpleLink Wi-…EPSS 1.8%8.0CVE-2021-22673Ti cc3100 software development kit stack-based buffer overflow vulnerabilityThe affected product is vulnerable to stack-based buffer overflow while processing over-the-air firmware updates from the CDN server, which may allow…EPSS 1.2%7.8CVE-2021-27502Real-time operating system integer overflow vulnerabilityTexas Instruments TI-RTOS, when configured to use HeapMem heap(default), malloc returns a valid pointer to a small buffer on extremely large values, …EPSS 0.28%7.8CVE-2021-27504Amazon freertos integer overflow vulnerabilityTexas Instruments devices running FREERTOS, malloc returns a valid pointer to a small buffer on extremely large values, which can trigger an integer …EPSS 0.28%7.8CVE-2021-22636Real-time operating system integer overflow vulnerabilityTexas Instruments TI-RTOS, when configured to use HeapMem heap(default), malloc returns a valid pointer to a small buffer on extremely large values, …EPSS 0.28%7.8CVE-2021-27429Real-time operating system integer overflow vulnerabilityTexas Instruments TI-RTOS returns a valid pointer to a small buffer on extremely large values. This can trigger an integer overflow vulnerability in …EPSS 0.28%7.8CVE-2021-22677Ti cc3100 software development kit integer overflow vulnerabilityAn integer overflow exists in the APIs of the host MCU while trying to connect to a WIFI network may lead to issues such as a denial-of-service condi…EPSS 0.30%7.2CVE-2021-22675Ti cc3100 software development kit integer overflow vulnerabilityThe affected product is vulnerable to integer overflow while parsing malformed over-the-air firmware update files, which may allow an attacker to rem…EPSS 1.4%

Source: NIST National Vulnerability Database (record CVE-2021-22679), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.