Researchers have found that a dangerous vulnerability found in more than a tenth of mobile phones in the world could allow attackers to kill all communications in a particular location.
Security Analysts from Check Point Research (CPR) I found the leak in the UNISOC modem, which according to researchers can be found in 11% of all smartphones in the world (mainly in Africa and Asia).
The said modem enables cellular connectivity, which allows an attacker to remotely deny modem services and block the connection by exploiting the flaw. The vulnerability is referred to as CVE-2022-20210 A weakness score of 9.4 out of 10 indicates its severity.
According to CPR, the vulnerability was discovered in NAS message processors, which can be used to disable wireless communications via a rogue packet. Apparently, for example, military or state-sponsored hackers should be able to use it to shut down all communications in specific locations.
A patch has now been released and it is urgently asking all concerned smartphone users to keep their devices updated.
“Android users do not need to do anything at the moment, although we highly recommend applying the patch that Google will release in Android Security Bulletin† said Slava McAfeev, reverse engineering and security research at Check Point Software.
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