CVE-2026-20538 - Vulnerability Details - OpenCVE

In Modem, there is a possible out of bounds read due to a missing permission 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-8914.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

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Advisories

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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

History

Mon, 05 Oct 2026 04:00:00 +0000

Type	Values Removed	Values Added
Title		Potential Out‑of‑Bounds Read in MediaTek Modem Leading to 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 permission 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-8914.
Weaknesses		CWE-126
References		https://www.mediatek.com/product-security-bulletin/October-2026

Projects

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MITRE

Status: PUBLISHED

Assigner: MediaTek

Published: 2026-10-05T01:40:17.667Z

Updated: 2026-10-05T01:40:17.667Z

Reserved: 2025-11-03T01:30:59.036Z

Link: CVE-2026-20538

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-10-05T02:16:52.753

Modified: 2026-10-05T02:16:52.753

Link: CVE-2026-20538

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-10-05T03:45:19Z

Weaknesses

CWE-126

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