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MEDIUM · 6.5

CVE-2026-20402

In Modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with...

Vulnerability Description

In Modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY00693083; Issue ID: MSV-5928.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
MediatekNr15-
MediatekMt2735-
MediatekMt6833-
MediatekMt6853-
MediatekMt6855-
MediatekMt6873-
MediatekMt6875-
MediatekMt6877-
MediatekMt6880-
MediatekMt6883-
MediatekMt6885-
MediatekMt6889-
MediatekMt6890-
MediatekMt6891-
MediatekMt6893-
MediatekMt8675-
MediatekMt8771-
MediatekMt8791-
MediatekMt8791T-
MediatekMt8797-

Related Weaknesses (CWE)

CWE-787

References

FAQ

What is CVE-2026-20402?

CVE-2026-20402 is a vulnerability with a CVSS score of 6.5 (MEDIUM). In Modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with...

How severe is CVE-2026-20402?

CVE-2026-20402 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-20402?

Check the references section above for vendor advisories and patch information. Affected products include: Mediatek Nr15, Mediatek Mt2735, Mediatek Mt6833, Mediatek Mt6853, Mediatek Mt6855.