CVE-2021-22677
HIGH
Published May 7, 20215y ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
Published May 7, 2021 5y ago
Last Modified Jun 17, 2026 2w ago
Description
An 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 condition or code execution 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 Details
Base Score
Exploitability
Impact
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
No active exploitation signals — not in CISA KEV and no EPSS score yet.
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-190 Integer Overflow or Wraparound Numeric Error
Affected Products 7
| Vendor | Product | Version | Range |
|---|---|---|---|
| ti | cc3100_software_development_kit | * | ≤1.3.0 |
| ti | cc3200_software_development_kit | * | ≤1.5.0 |
| ti | simplelink_cc13x0_software_development_kit | * | <4.10.03 |
| ti | simplelink_cc13x2_software_development_kit | * | <4.40.00 |
| ti | simplelink_cc26xx_software_development_kit | * | <4.40.00 |
| ti | simplelink_cc32xx_software_development_kit | * | ≤4.30.00.06 |
| ti | simplelink_msp432e4_software_development_kit | * | ≤4.20.00.12 |
References 1
- us-cert.cisa.gov https://us-cert.cisa.gov/ics/advisories/icsa-21-119-01
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.