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: MOLY01816800; Issue ID: MSV-6842.

No CVSS v4.0

Attack Vector Adjacent Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00182.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
MediaTek, Inc. MediaTek chipset unaffected
Version Status Constraints
MT2716 affected —
MT2735 affected —
MT2737 affected —
MT6739 affected —
MT6761 affected —
MT6762 affected —
MT6763 affected —
MT6765 affected —
MT6767 affected —
MT6768 affected —
MT6769 affected —
MT6771 affected —
MT6779 affected —
MT6781 affected —
MT6783 affected —
MT6785 affected —
MT6789 affected —
MT6813 affected —
MT6833 affected —
MT6835 affected —
MT6853 affected —
MT6855 affected —
MT6858 affected —
MT6873 affected —
MT6875 affected —
MT6877 affected —
MT6878 affected —
MT6879 affected —
MT6880 affected —
MT6881 affected —
MT6883 affected —
MT6885 affected —
MT6886 affected —
MT6889 affected —
MT6890 affected —
MT6891 affected —
MT6893 affected —
MT6895 affected —
MT6896 affected —
MT6897 affected —
MT6899 affected —
MT6980 affected —
MT6982 affected —
MT6983 affected —
MT6985 affected —
MT6986 affected —
MT6986D affected —
MT6988 affected —
MT6989 affected —
MT6990 affected —
MT6991 affected —
MT6993 affected —
MT8666 affected —
MT8667 affected —
MT8668 affected —
MT8673 affected —
MT8675 affected —
MT8676 affected —
MT8678 affected —
MT8755 affected —
MT8765 affected —
MT8766 affected —
MT8766R affected —
MT8768 affected —
MT8771 affected —
MT8775 affected —
MT8781 affected —
MT8786 affected —
MT8788 affected —
MT8788E affected —
MT8789 affected —
MT8791 affected —
MT8791T affected —
MT8792 affected —
MT8793 affected —
MT8795T affected —
MT8796 affected —
MT8797 affected —
MT8798 affected —
MT8863 affected —
MT8873 affected —
MT8883 affected —
MT8893 affected —

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors Products
Mediatek, Inc. Subscribe
Mediatek Chipset Subscribe

Project Subscriptions

Vendors Products
Mediatek, Inc. Subscribe
Mediatek Chipset Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://corp.mediatek.com/product-security-bulletin/July-2026 cve-icon
History

Thu, 02 Jul 2026 04:15:00 +0000

Type Values Removed Values Added
Title Modem Input Validation Crash Allowing Remote Denial of Service on MediaTek Chipsets

Wed, 01 Jul 2026 22:00:00 +0000

Type Values Removed Values Added
Title Modem Input Validation Crash Allowing Remote Denial of Service on MediaTek Chipsets

Wed, 01 Jul 2026 14:30:00 +0000

Type Values Removed Values Added
First Time appeared Mediatek, Inc.
Mediatek, Inc. mediatek Chipset
Vendors & Products Mediatek, Inc.
Mediatek, Inc. mediatek Chipset

Wed, 01 Jul 2026 11:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 01 Jul 2026 11:15:00 +0000

Type Values Removed Values Added
Title Modem Denial of Service via Improper Input Validation on MediaTek Chipset

Wed, 01 Jul 2026 06:45:00 +0000

Type Values Removed Values Added
Title Modem Denial of Service via Improper Input Validation on MediaTek Chipset

Wed, 01 Jul 2026 03:30:00 +0000

Type Values Removed Values Added
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: MOLY01816800; Issue ID: MSV-6842.
Weaknesses CWE-288
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: MediaTek

Published:

Updated: 2026-07-01T10:39:19.025Z

Reserved: 2025-11-03T01:30:59.014Z

Link: CVE-2026-20459

cve-icon Vulnrichment

Updated: 2026-07-01T10:37:55.959Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-02T06:00:16Z

Weaknesses