Remote Denial of Service Vulnerability in Mediatek Modem
CVE-2025-20751

5.3MEDIUM

Key Information:

Vendor

MediaTek
Status
Mt2735, Mt6833, Mt6833p, Mt6853, Mt6853t, Mt6855, Mt6855t, Mt6873, Mt6875, Mt6875t, Mt6877, Mt6877t, Mt6877tt, Mt6880, Mt6883, Mt6885, Mt6889, Mt6890, Mt6891, Mt6893, Mt8675, Mt8771, Mt8791, Mt8791t, Mt8797
Vendor
CVE Published:
2 December 2025

What is CVE-2025-20751?

A vulnerability exists in Mediatek's Modem that allows an attacker to trigger a system crash due to a missing bounds check. This flaw can lead to a remote denial of service condition if a user equipment (UE) connects to a rogue base station controlled by the attacker. Crucially, no additional execution privileges or user interaction is required for the exploit to occur. It is essential for users and administrators to apply the security patch (ID: MOLY01661195) to mitigate this risk.

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Deploy the Patch

Affected Version(s)

MT2735, MT6833, MT6833P, MT6853, MT6853T, MT6855, MT6855T, MT6873, MT6875, MT6875T, MT6877, MT6877T, MT6877TT, MT6880, MT6883, MT6885, MT6889, MT6890, MT6891, MT6893, MT8675, MT8771, MT8791, MT8791T, MT8797 Modem NR15

References

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

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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