CVE-2026-20460
Received Received - Intake

Improper Input Validation in Modem Leads to Information Disclosure

Publication date: 2026-07-01

Last updated on: 2026-07-01

Assigner: MediaTek, Inc.

Description
In Modem, there is a possible information disclosure due to improper input validation. This could lead to remote information disclosure, 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: MOLY01811421; Issue ID: MSV-6788.

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Meta Information

Published
2026-07-01
Last Modified
2026-07-01
Generated
2026-07-01
AI Q&A
2026-07-01
EPSS Evaluated
N/A
NVD
CVE-2026-20460
EUVD
EUVD-2026-40873

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
mediatek modem *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-288 The product requires authentication, but the product has an alternate path or channel that does not require authentication.

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Executive Summary

This vulnerability exists in a modem component where improper input validation can lead to information disclosure.

An attacker controlling a rogue base station can exploit this flaw to remotely access sensitive information from a user equipment (UE) device connected to that base station.

No additional execution privileges or user interaction are required for the exploitation.

Impact Analysis

The vulnerability can lead to remote information disclosure, meaning an attacker could obtain sensitive data from your device without your knowledge.

Since exploitation requires no user interaction and no special privileges, it poses a significant risk of unauthorized data exposure if your device connects to a malicious base station.

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