CVE-2025-43706: High severity Samsung Exynos 980 vulnerability

Published Jan 5, 2026
·
Updated

An issue was discovered in L2 in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2400, 1580, 9110, W920, W930, Modem 5123, and Modem 5400. Incorrect handling of RRC packets leads to a Denial of Service.

Affected Software

33 affected components
Samsung Exynos 980
Samsung Exynos 990
Samsung Exynos 850
Samsung Exynos 1080
Samsung Exynos 2400
Samsung Exynos 1580
Samsung Exynos 9110
Samsung W920
Samsung W930
Samsung Modem 5123
Samsung Modem 5400
All of the following
Samsung Exynos 1080 Firmware
Samsung Exynos 1080
All of the following
Samsung Exynos 1580 Firmware
Samsung Exynos 1580
All of the following
Samsung Exynos 980 Firmware
Samsung Exynos 980
All of the following
Samsung Exynos 990 Firmware
Samsung Exynos 990
All of the following
Samsung Exynos 9110 Firmware
Samsung Exynos 9110
All of the following
Samsung Exynos 850 Firmware
Samsung Exynos 850
All of the following
Samsung Exynos 2400 Firmware
Samsung Exynos 2400
All of the following
Samsung Exynos W930 Firmware
Samsung Exynos W930
All of the following
Samsung Exynos W920 Firmware
Samsung Exynos W920
All of the following
Samsung Modem 5123 Firmware
Samsung Modem 5123
All of the following
Samsung Modem 5400 Firmware
Samsung Modem 5400

Event History

Jan 5, 2026
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·07:15 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-43706?

CVE-2025-43706 is classified as a Denial of Service vulnerability.

2

How do I fix CVE-2025-43706?

To fix CVE-2025-43706, ensure you have the latest firmware or software updates from Samsung for affected devices.

3

Which devices are affected by CVE-2025-43706?

CVE-2025-43706 affects Samsung Mobile Processors including Exynos 980, 990, 850, 1080, 2400, 1580, 9110, as well as Modems 5123 and 5400.

4

What causes CVE-2025-43706?

CVE-2025-43706 is caused by incorrect handling of RRC packets within the affected Samsung processors.

5

Is there any mitigation for CVE-2025-43706?

The primary mitigation for CVE-2025-43706 is to apply the security updates provided by Samsung.

Contact

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