CVE-2025-62818: Critical severity Samsung Exynos 980 vulnerability

Published Apr 7, 2026
·
Updated

An issue was discovered in Samsung Mobile Processor, Wearable Processor, and Modem 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. An out-of-bounds write occurs due to a mismatch between the TP-UDHI and UDL values when processing an SMS TP-UD packet.

Affected Software

60 affected components
Samsung Exynos 980
Samsung Exynos 990
Samsung Exynos 850
Samsung Exynos 1080
Samsung Exynos 2100
Samsung Exynos 1280
Samsung Exynos 2200
Samsung Exynos 1330
Samsung Exynos 1380
Samsung Exynos 1480
Samsung Exynos 2400
Samsung Exynos 1580
Samsung Exynos 2500
Samsung Exynos 9110
Samsung Exynos W920
Samsung Exynos W930
Samsung Exynos W1000
Samsung Exynos Modem 5123
Samsung Exynos Modem 5300
Samsung Exynos Modem 5400
All of the following
Samsung Exynos 990 Firmware
Samsung Exynos 990
All of the following
Samsung Exynos 980 Firmware
Samsung Exynos 980
All of the following
Samsung Exynos 850 Firmware
Samsung Exynos 850
All of the following
Samsung Exynos 1080 Firmware
Samsung Exynos 1080
All of the following
Samsung Exynos 1280 Firmware
Samsung Exynos 1280
All of the following
Samsung Exynos 1330 Firmware
Samsung Exynos 1330
All of the following
Samsung Exynos 1380 Firmware
Samsung Exynos 1380
All of the following
Samsung Exynos 1480 Firmware
Samsung Exynos 1480
All of the following
Samsung Exynos 1580 Firmware
Samsung Exynos 1580
All of the following
Samsung Exynos 9110 Firmware
Samsung Exynos 9110
All of the following
Samsung Exynos 2100 Firmware
Samsung Exynos 2100
All of the following
Samsung Exynos 2200 Firmware
Samsung Exynos 2200
All of the following
Samsung Exynos 2400 Firmware
Samsung Exynos 2400
All of the following
Samsung Exynos 2500 Firmware
Samsung Exynos 2500
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 Exynos W1000 Firmware
Samsung Exynos W1000
All of the following
Samsung Exynos Modem 5400 Firmware
Samsung Exynos Modem 5400
All of the following
Samsung Exynos Modem 5300 Firmware
Samsung Exynos Modem 5300
All of the following
Samsung Exynos Modem 5123 Firmware
Samsung Exynos Modem 5123

Event History

Apr 7, 2026
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·03:17 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-62818?

CVE-2025-62818 has been classified as a high severity vulnerability due to the potential for exploitation through an out-of-bounds write.

2

How do I fix CVE-2025-62818?

To mitigate CVE-2025-62818, you should update the firmware for the affected Samsung Exynos processors as provided by Samsung's security updates.

3

Which devices are affected by CVE-2025-62818?

CVE-2025-62818 affects multiple Samsung Exynos processors, including Exynos 980, 990, and several modem versions like 5123 and 5300.

4

What is the potential impact of CVE-2025-62818?

The vulnerability could lead to system crashes or arbitrary code execution, compromising device integrity and security.

5

Is CVE-2025-62818 exploitable remotely?

Yes, CVE-2025-62818 can potentially be exploited remotely, making it crucial for users to apply security updates promptly.

Contact

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