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How the mentioned CVE works:
The vulnerability exists in MediaTek modem software.
A missing bounds check occurs during signal processing.
When a UE connects to a base station, protocols are handled.
A rogue base station controlled by an attacker can send malicious signals.
These signals are crafted to exploit the missing check.
The modem fails to validate input data bounds.
This leads to out-of-bounds memory access.
Memory corruption occurs, triggering a system crash.
The crash results in remote denial of service.
No user interaction is required for exploitation.
The UE must be within range of the rogue base station.
Attackers can spoof legitimate cellular networks.
The vulnerability affects modem functionality for voice and data.
It is specific to MediaTek modem implementations.
The issue is tracked as MSV-4301.
Patch ID MOLY01270690 addresses this vulnerability.
The patch adds the necessary bounds check.
Exploitation is possible via base station spoofing attacks.
The missing check likely involves radio resource control messages.
Overall, it highlights input validation flaws in telecom software.
Platform: MediaTek Modem
Version: Various versions
Vulnerability: Missing bounds check
Severity: Critical
Date: 12/01/2025
Prediction: Patch available 12/04/2025
What Undercode Say:
Analytics
– `dmesg | grep modem`
– `logcat | grep -i crash`
– `strings /firmware | grep MOLY01270690`
void process_data(char input, int size) {
char buffer[bash];
memcpy(buffer, input, size); // Missing bounds check
}
how Exploit:
Set up rogue base station.
Force UE connection.
Send malicious signals.
Protection from this CVE
Apply MediaTek patch.
Update modem firmware.
Use network authentication.
Impact:
Remote denial of service.
System crash.
Service disruption.
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Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
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