Out of Bounds Write in Modem Products by MediaTek
CVE-2025-20708

8.1HIGH

Key Information:

Vendor

MediaTek
Status
Mt2735, Mt2737, Mt6813, Mt6815, 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, Mt8673, Mt8675, Mt8676, Mt8678, Mt8771, Mt8791, Mt8791t, Mt8792, Mt8795t, Mt8797, Mt8798, Mt8863, Mt8873, Mt8883, Mt8893
Vendor
CVE Published:
1 September 2025

What is CVE-2025-20708?

A vulnerability has been identified in MediaTek's modem products, stemming from an inadequate bounds check. This flaw could enable an attacker to exploit a connection to a rogue base station, facilitating remote escalation of privilege without requiring any user interaction. Affected users are urged to apply the recommended patches to mitigate risks associated with this vulnerability.

Affected Version(s)

MT2735, MT2737, MT6813, MT6815, 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, MT8673, MT8675, MT8676, MT8678, MT8771, MT8791, MT8791T, MT8792, MT8795T, MT8797, MT8798, MT8863, MT8873, MT8883, MT8893 Modem NR15, NR16, NR17, NR17R

References

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

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.