Unisoc actively captures the single-chip market, but it only does so in the budget segment. These platforms are vulnerable, however.
The source claims that the problem lies in the modem’s firmware. It affects both 4G as well as 5G platforms. CVE-2022-20210 was found while scanning Non-Access Stratum message handlers. This vulnerability could be used in order to block or neutralize the device’s cell capabilities.
First discovered was the vulnerability in Motorola Moto G20 smartphones based on the Unisoc T700 SoC. However, it was discovered that the vulnerability exists on other platforms as well, although the source didn’t provide a list.
The vulnerability was discovered by Check Point experts in May. Unisoc has since released a fix. Smartphone owners shouldn’t be concerned if they have updated their software.