CVE-2021-22677 Integer overflow in SimpleLink Wi-Fi, MSP432, CC13XX, CC26XX, CC32XX, CC3100

High 7.8 Published 7 May 2021 Updated 3 Aug 2024

An integer overflow in SimpleLink Wi-Fi SDK APIs during network connection allows attackers to cause denial of service or execute arbitrary code.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-22677?

CVE-2021-22677 is a high-severity vulnerability in SimpleLink Wi-Fi, MSP432, CC13XX, CC26XX, CC32XX, CC3100, published on 7 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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).

Weakness: CWE-190

Which versions are affected by CVE-2021-22677?

It affects 7 products.

Products include Ti Cc3100 Software Development Kit, Ti Cc3200 Software Development Kit, Ti Simplelink Cc13x0 Software Development Kit, Ti Simplelink Cc13x2 Software Development Kit, Ti Simplelink Cc26xx Software Development Kit, Ti Simplelink Cc32xx Software Development Kit and 1 more.

How do I fix CVE-2021-22677?

No fix has been published for CVE-2021-22677 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-22677 being exploited?

There is no known exploitation of CVE-2021-22677 in the wild and no public exploit code.

Sources

Also known as GHSA-c99v-p88g-44f5.