Improper Input Validation in Mediatek Modem Leading to Remote Denial of Service
CVE-2025-20659

7.5HIGH

Key Information:

Vendor
MediaTek
Status
Mt2735, Mt2737, Mt6739, Mt6761, Mt6762, Mt6762d, Mt6762m, Mt6763, Mt6765, Mt6765t, Mt6767, Mt6768, Mt6769, Mt6769k, Mt6769s, Mt6769t, Mt6769z, Mt6771, Mt6779, Mt6781, Mt6783, Mt6785, Mt6785t, Mt6785u, Mt6789, 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, Mt8666, Mt8667, Mt8673, Mt8675, Mt8676, Mt8678, Mt8765, Mt8766, Mt8768, Mt8771, Mt8781, Mt8786, Mt8788, Mt8788e, Mt8791t, Mt8796, Mt8797, Mt8798, Mt8863
Vendor
CVE Published:
7 April 2025

Summary

A vulnerability exists in Mediatek's Modem due to improper input validation that may result in a system crash. This flaw allows attackers to cause a remote denial of service by exploiting a connection to a malicious base station, without requiring any user interaction or additional execution privileges. This issue presents significant security risks for devices relying on this modem technology. A patch addressing this vulnerability is available, and users are encouraged to apply it promptly.

Affected Version(s)

MT2735, MT2737, MT6739, MT6761, MT6762, MT6762D, MT6762M, MT6763, MT6765, MT6765T, MT6767, MT6768, MT6769, MT6769K, MT6769S, MT6769T, MT6769Z, MT6771, MT6779, MT6781, MT6783, MT6785, MT6785T, MT6785U, MT6789, 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, MT8666, MT8667, MT8673, MT8675, MT8676, MT8678, MT8765, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8788E, MT8791T, MT8796, MT8797, MT8798, MT8863 Modem LR12A, LR13, NR15, NR16, NR17, NR17R

References

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

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.