CVE-2026-20402
MEDIUMCVSS Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
2Tags
Description
In Modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service, 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: MOLY00693083; Issue ID: MSV-5928.
Analysis
The Nr15 Modem lacks proper input validation in message handling, allowing an attacker controlling a rogue base station to trigger a denial of service condition and crash the system without requiring user interaction or special privileges. This vulnerability affects any device connecting to the compromised base station and currently lacks a vendor patch.
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.
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