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.

Metrics

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.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Mediatek, Inc.
  • Mediatek Chipset

No data.

No data.

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

Mon, 06 Jul 2026 20:30:00 +0000

Type Values Removed Values Added
Title Modem Crash from Improper Input Validation Leading to Remote Denial of Service

Mon, 06 Jul 2026 03:15:00 +0000

Type Values Removed Values Added
Title Modem Crash from Improper Input Validation Leading to Remote Denial of Service

Sun, 05 Jul 2026 19:15:00 +0000

Type Values Removed Values Added
Title Modem input validation flaw can crash device, enabling remote denial of service

Sun, 05 Jul 2026 06:30:00 +0000

Type Values Removed Values Added
Title Modem input validation flaw can crash device, enabling remote denial of service

Sat, 04 Jul 2026 22:45:00 +0000

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

Sat, 04 Jul 2026 11:30:00 +0000

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

Sat, 04 Jul 2026 03:45:00 +0000

Type Values Removed Values Added
Title Remote Denial of Service via Improper Input Validation in MediaTek Modem

Fri, 03 Jul 2026 19:30:00 +0000

Type Values Removed Values Added
Title Remote Denial of Service via Improper Input Validation in MediaTek Modem

Fri, 03 Jul 2026 02:00:00 +0000

Type Values Removed Values Added
Title Modem Component Input Validation Failure Leads to Remote Denial of Service on MediaTek Chipsets

Thu, 02 Jul 2026 14:00:00 +0000

Type Values Removed Values Added
Title Modem Component Input Validation Failure Leads to Remote Denial of Service on MediaTek Chipsets

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
cve-icon MITRE

Status: PUBLISHED

Assigner: MediaTek

Published: 2026-07-01T03:14:00.977Z

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.