Memory Corruption Vulnerability in MediaTek Modem Products
CVE-2026-20458

7.5HIGH

Key Information:

Vendor

MediaTek
Status
Mediatek Chipset
Vendor
CVE Published:
1 July 2026

What is CVE-2026-20458?

A memory corruption issue has been identified in MediaTek's Modem products due to a missing bounds check. This flaw can be exploited by an attacker controlling a rogue base station, allowing for remote escalation of privileges without requiring additional execution privileges or user interaction. Affected users should apply the available patch (Patch ID: MOLY01402160) to mitigate potential risks associated with this vulnerability.

Affected Version(s)

MediaTek chipset MT2716

MediaTek chipset MT2737

MediaTek chipset MT6739

References

https://corp.mediatek.com/product-security-bulletin/July-...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.