Learn about CVE-2022-26443, a vulnerability in MediaTek wifi drivers allowing local privilege escalation without user interaction. Patch available: GN20220420068.
This article provides detailed information about CVE-2022-26443, a vulnerability in wifi drivers developed by MediaTek, Inc.
Understanding CVE-2022-26443
CVE-2022-26443 is a vulnerability in MediaTek wifi drivers that could potentially lead to a local escalation of privilege without the need for user interaction.
What is CVE-2022-26443?
The vulnerability in the wifi driver is due to a missing bounds check, resulting in a possible out-of-bounds write. An attacker could exploit this flaw to escalate privileges locally.
The Impact of CVE-2022-26443
The impact of this vulnerability is the potential escalation of privilege, which could allow an attacker to gain system execution privileges without requiring user interaction.
Technical Details of CVE-2022-26443
This section outlines the technical details of CVE-2022-26443.
Vulnerability Description
The vulnerability arises from a missing bounds check in the wifi driver, potentially leading to an out-of-bounds write.
Affected Systems and Versions
Affected products include MT7603, MT7610, MT7612, MT7613, MT7615, MT7620, MT7622, MT7628, MT7629, MT7915, MT7916, MT7986, and MT8981 with version 7.6.2.3.
Exploitation Mechanism
The vulnerability can be exploited locally to escalate privileges without requiring user interaction.
Mitigation and Prevention
Here are the steps to mitigate and prevent exploitation of CVE-2022-26443.
Immediate Steps to Take
Long-Term Security Practices
Patching and Updates