In Modem, there is a possible system crash due to a heap buffer overflow. 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: MOLY01760138; Issue ID: MSV-6148.

Metrics

No CVSS v4.0

Attack Vector Adjacent Network

Attack Complexity Low

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 0.00073.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Mediatek, Inc.
  • Mediatek Chipset

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.
  • Mediatek Chipset
References
Link Providers
https://corp.mediatek.com/product-security-bulletin/May-2026 cve-icon cve-icon
History

Mon, 04 May 2026 15:30:00 +0000

Type Values Removed Values Added
Title Modem Heap Buffer Overflow Causing Remote Denial of Service

Mon, 04 May 2026 13:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:A/AC:L/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'}

Mon, 04 May 2026 08:15:00 +0000

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

Mon, 04 May 2026 07:45:00 +0000

Type Values Removed Values Added
Title Modem Heap Buffer Overflow Causing Remote Denial of Service

Mon, 04 May 2026 06:45:00 +0000

Type Values Removed Values Added
Description In Modem, there is a possible system crash due to a heap buffer overflow. 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: MOLY01760138; Issue ID: MSV-6148.
Weaknesses CWE-120
References
cve-icon MITRE

Status: PUBLISHED

Assigner: MediaTek

Published:

Updated: 2026-05-04T12:59:15.818Z

Reserved: 2025-11-03T01:30:59.013Z

Link: CVE-2026-20449

cve-icon Vulnrichment

Updated: 2026-05-04T12:59:05.581Z

cve-icon NVD

Status : Received

Published: 2026-05-04T07:15:59.610

Modified: 2026-05-04T14:16:32.390

Link: CVE-2026-20449

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-04T15:15:03Z