In Modem, there is a possible out of bounds read 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: MOLY01774038; Issue ID: MSV-8912.

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.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

No data.

No data.

No data.

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No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

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

Mon, 05 Oct 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'}

Mon, 05 Oct 2026 05:00:00 +0000

Type Values Removed Values Added
Title Out-of-Bounds Read in MediaTek Modem Enables Remote Denial of Service via Rogue Base Station

Mon, 05 Oct 2026 02:15:00 +0000

Type Values Removed Values Added
Description In Modem, there is a possible out of bounds read 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: MOLY01774038; Issue ID: MSV-8912.
Weaknesses CWE-126
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: MediaTek

Published:

Updated: 2026-10-05T10:13:13.551Z

Reserved: 2025-11-03T01:30:59.039Z

Link: CVE-2026-20540

cve-icon Vulnrichment

Updated: 2026-10-05T10:12:41.849Z

cve-icon NVD

Status : Received

Published: 2026-10-05T02:16:53.010

Modified: 2026-10-05T11:16:51.930

Link: CVE-2026-20540

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-05T04:45:18Z

Weaknesses