CVE-2022-26445 Memory corruption in MT7603, MT7610, MT7612, MT7613, MT7615, MT7620, MT7622, MT7628, MT7629, MT7915, MT7916, MT7986, MT8981

Medium 6.7 Published 1 Aug 2022 Updated 3 Aug 2024

A missing bounds check in MediaTek WiFi drivers allows local attackers with system privileges to escalate privileges via out-of-bounds write.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-26445?

CVE-2022-26445 is a medium-severity memory corruption vulnerability in MediaTek, Inc. MT7603, MT7610, MT7612, MT7613, MT7615, MT7620, MT7622, MT7628, MT7629, MT7915, MT7916, MT7986, MT8981, published on 1 Aug 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In wifi driver, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: GN20220420088; Issue ID: GN20220420088.

Weakness: CWE-787

Which versions are affected by CVE-2022-26445?

It affects 13 products.

Products include Mediatek Mt7603 Firmware, Mediatek Mt7610 Firmware, Mediatek Mt7612 Firmware, Mediatek Mt7613 Firmware, Mediatek Mt7615 Firmware, Mediatek Mt7620 Firmware and 7 more.

How do I fix CVE-2022-26445?

No fix has been published for CVE-2022-26445 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2022-26445 being exploited?

There is no known exploitation of CVE-2022-26445 in the wild and no public exploit code.

Sources

Also known as GHSA-rqw2-649f-4qrh.