Security analysts at Check Point Research (CPR) have discovered a vulnerability in a UNISOC modem that researchers say can be found on 11% of all smartphones around the world (mainly in Africa and Asia).
The modem provides cellular communications, and by exploiting the vulnerability, an attacker could remotely disable modem services and block communications.
Critical UNISOC Modem Vulnerability
The severity of the vulnerability is currently rated at 9.4 out of 10.
According to CPR, it was found in NAS message handlers that could be used to disrupt radio communications via a malformed data packet. Apparently, military or government hackers could use it to cut off all communications in certain places.
An update was prepared after the fault was discovered, so all smartphone users are advised to keep their devices updated (although this should be done without it).
“Android users will have to wait and install a patch that will be released by Google with the next update,” said Slava Makkaveev, reverse engineer and security researcher at Check Point Software.
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