Live › vulnerability › CVE-2026-20552
A missing bounds check in the ccci modem driver in MediaTek chipsets allows an out-of-bounds write. The sources say this can lead to a remote denial of service without extra privileges, and user interaction is needed.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-11-02 03:31 UTC. All times on this page are UTC.
Devices built on the listed MediaTek chipsets, where the modem driver is present. Handset and IoT makers ship the fix in their firmware, so a team should check the device vendor's bulletin. Devices on other chipsets are not named in the sources.
No product ranges from the sources yet.
Unknown from the sources.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
In ccci, there is a possible out of bounds write due to a missing bounds check. This could lead to remote denial of service with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS11523478 (Note: For MT6880, MT6890) / ALPS11297423 (Note: For MT6813, MT6986, MT6982, MT6980D) / AUTO00864897 (Note: For MT2735, MT2737); Issue ID: MSV-10724.
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