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Samsung Exynos Processors Denial-of-Service Vulnerability via Improper RLC AM PDU Handling

Vulnerability

A denial-of-service vulnerability has been identified in the Samsung L2 layer of various mobile and wearable processors, as well as certain modem components. This issue arises from the incorrect handling of RLC AM PDUs, leading to a disruption of service. Affected processors include Exynos 9820, 9825, 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 9110, W920, W930, and Modem versions 5123 and 5300.

Impact

Exploitation of this vulnerability causes a denial-of-service condition, disrupting normal operation and service availability.

Added: Oct 20, 2025, 4:34 PM
Updated: Oct 20, 2025, 4:34 PM

Vulnerability Rating

Custom Algorithm
spread
7.8
impact
2.5
exploitability
4.7
remediation
0.0
relevance
0.8
threat
0.0
urgency
2.9
incentive
0.8

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