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Samsung Exynos Processors and Modems Incorrect LTE MAC Packet Handling Vulnerability Leading to Baseband Crashes

Vulnerability

A vulnerability exists in the L2 layer of various Samsung mobile processors, wearable processors, and modems, including the Exynos 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 1580, 2500, 9110, W920, W930, W1000, Modem 5123, Modem 5300, and Modem 5400. The issue arises from improper handling of LTE MAC packets that contain a large number of MAC Control Elements (CEs), resulting in crashes within the baseband.

Impact

Exploitation of this vulnerability causes baseband crashes, disrupting normal device operation.

Added: Apr 6, 2026, 7:21 PM
Updated: Apr 6, 2026, 7:21 PM

Vulnerability Rating

Custom Algorithm
spread
7.8
impact
2.5
exploitability
4.7
remediation
0.0
relevance
5.4
threat
0.0
urgency
2.9
incentive
0.0

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.