Remote Denial of Service Vulnerability in Mediatek Modem Products
CVE-2025-20752

6.5MEDIUM

Key Information:

Vendor

MediaTek
Status
Mt2735, Mt2737, Mt6813, Mt6833, Mt6833p, Mt6835, Mt6835t, Mt6853, Mt6853t, Mt6855, Mt6855t, Mt6873, Mt6875, Mt6875t, Mt6877, Mt6877t, Mt6877tt, Mt6878, Mt6878m, Mt6879, Mt6880, Mt6883, Mt6885, Mt6886, Mt6889, Mt6890, Mt6891, Mt6893, Mt6895, Mt6895tt, Mt6896, Mt6897, Mt6899, Mt6980, Mt6980d, Mt6983, Mt6983t, Mt6985, Mt6985t, Mt6989, Mt6989t, Mt6990, Mt6991, Mt8676, Mt8791t
Vendor
CVE Published:
2 December 2025

What is CVE-2025-20752?

In Mediatek's modem, a vulnerability exists that could lead to a system crash due to inadequate bounds checking. This flaw allows an attacker to cause a remote denial of service by exploiting connections made to a malicious base station without needing any special execution privileges or user interaction. The opportunity for exploitation is significant, leading to potential disruptions in service.

Affected Version(s)

MT2735, MT2737, MT6813, MT6833, MT6833P, MT6835, MT6835T, MT6853, MT6853T, MT6855, MT6855T, MT6873, MT6875, MT6875T, MT6877, MT6877T, MT6877TT, MT6878, MT6878M, MT6879, MT6880, MT6883, MT6885, MT6886, MT6889, MT6890, MT6891, MT6893, MT6895, MT6895TT, MT6896, MT6897, MT6899, MT6980, MT6980D, MT6983, MT6983T, MT6985, MT6985T, MT6989, MT6989T, MT6990, MT6991, MT8676, MT8791T Modem NR15, NR16, NR17, NR17R

References

https://corp.mediatek.com/product-security-bulletin/Decem...

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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