Live › vulnerability › CVE-2026-20557
A missing bounds check in the modem firmware allows an out-of-bounds write. A phone or device that connects to an attacker-controlled rogue base station can be pushed to escalate privileges remotely, with no user interaction.
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 with a cellular modem that can connect to a fake base station (IMSI-catcher style rogue tower) are the exposed set. The sources name only the Modem component and a Patch ID (MOLY01877236), not affected product versions. unknown for which devices or chipsets are affected.
No product ranges from the sources yet.
Unknown from the sources.
Unknown from the sources.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
In Modem, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01877236; Issue ID: MSV-9804.
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