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CVE-2026-20451: CWE-843 Access of Resource Using Incompatible Type ('Type Confusion') in MediaTek, Inc. MediaTek chipset

0
Medium
VulnerabilityCVE-2026-20451cvecve-2026-20451cwe-843
Published: Mon May 04 2026 (05/04/2026, 05:42:29 UTC)
Source: CVE Database V5
Vendor/Project: MediaTek, Inc.
Product: MediaTek chipset

Description

In slbc, there is a possible out of bounds write due to type confusion. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10828685; Issue ID: MSV-6504.

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 05/04/2026, 06:52:08 UTC

Technical Analysis

This vulnerability involves a type confusion flaw (CWE-843) in the slbc component of various MediaTek chipsets, which can result in an out-of-bounds write. The issue could be exploited locally by an attacker who already has System privileges to escalate their privileges further. The affected chipsets include a broad range of MediaTek models such as MT2718, MT6899, MT6985, and others. There is no indication of user interaction being required for exploitation. No official patch or remediation level has been provided yet, and no known exploits are reported in the wild.

Potential Impact

The vulnerability allows a local attacker with existing System privileges to perform an out-of-bounds write due to type confusion, potentially escalating their privileges further. This could compromise system integrity on affected MediaTek chipsets. There is no evidence of remote exploitation or exploitation without prior elevated privileges. No known exploits have been reported in the wild.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official patch or remediation level has been published, users and administrators should monitor MediaTek advisories for updates. No specific mitigations or workarounds are currently documented.

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Technical Details

Data Version
5.2
Assigner Short Name
MediaTek
Date Reserved
2025-11-03T01:30:59.013Z
Cvss Version
null
State
PUBLISHED
Remediation Level
null

Threat ID: 69f83e68cbff5d8610c9d59f

Added to database: 5/4/2026, 6:36:24 AM

Last enriched: 5/4/2026, 6:52:08 AM

Last updated: 5/5/2026, 5:54:05 AM

Views: 8

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