CVE-2026-20403
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2026-02-02

Last updated on: 2026-02-17

Assigner: MediaTek, Inc.

Description
In Modem, there is a possible system crash due to a missing bounds check. 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: MOLY01689254 (Note: For N15 and NR16) / MOLY01689259 (Note: For NR17 and NR17R); Issue ID: MSV-4843.
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Meta Information
Published
2026-02-02
Last Modified
2026-02-17
Generated
2026-05-27
AI Q&A
2026-02-02
EPSS Evaluated
2026-05-25
NVD
EUVD
Affected Vendors & Products
Showing 46 associated CPEs
Vendor Product Version / Range
mediatek nr15 *
mediatek nr16 *
mediatek nr17 *
mediatek nr17r *
mediatek mt2735 *
mediatek mt2737 *
mediatek mt6813 *
mediatek mt6815 *
mediatek mt6833 *
mediatek mt6835 *
mediatek mt6853 *
mediatek mt6855 *
mediatek mt6873 *
mediatek mt6875 *
mediatek mt6877 *
mediatek mt6878 *
mediatek mt6879 *
mediatek mt6880 *
mediatek mt6883 *
mediatek mt6885 *
mediatek mt6886 *
mediatek mt6889 *
mediatek mt6890 *
mediatek mt6891 *
mediatek mt6893 *
mediatek mt6895 *
mediatek mt6896 *
mediatek mt6897 *
mediatek mt6899 *
mediatek mt6980 *
mediatek mt6983 *
mediatek mt6985 *
mediatek mt6989 *
mediatek mt6990 *
mediatek mt6991 *
mediatek mt6993 *
mediatek mt8673 *
mediatek mt8675 *
mediatek mt8676 *
mediatek mt8771 *
mediatek mt8791 *
mediatek mt8791t *
mediatek mt8795t *
mediatek mt8797 *
mediatek mt8798 *
mediatek mt8893 *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-787 The product writes data past the end, or before the beginning, of the intended buffer.
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability is a missing bounds check in the modem software that can cause a system crash. An attacker controlling a rogue base station can exploit this to cause a remote denial of service on a device connected to that base station, without needing any additional execution privileges or user interaction.


How can this vulnerability impact me? :

The vulnerability can lead to a remote denial of service, causing the affected device's system to crash when connected to a malicious base station. This can disrupt device availability and functionality.


What immediate steps should I take to mitigate this vulnerability?

Apply the patches MOLY01689254 (for N15 and NR16) or MOLY01689259 (for NR17 and NR17R) provided by the vendor to fix the vulnerability.


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