CVE-2025-66369

DoS caused by 5G NR NAS Registration Accept Message Handling

Published May 5, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
An issue was discovered in MM in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 1580, W920, W930, W1000, Modem 5123, and Modem 5300. Incorrect handling of 5G NR NAS registration accept messages leads to a Denial of Service.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title DoS caused by 5G NR NAS Registration Accept Message Handling
Type Values Removed Values Added
Title Denial of Service via 5G NR NAS Registration Handling in Samsung Processors
Weaknesses CWE-665
Type Values Removed Values Added
Description An issue was discovered in MM in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 1580, 2500, W920, W930, W1000, Modem 5123, Modem 5300, and Modem 5400. Incorrect handling of 5G NR NAS registration accept messages leads to a Denial of Service. An issue was discovered in MM in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 1580, W920, W930, W1000, Modem 5123, and Modem 5300. Incorrect handling of 5G NR NAS registration accept messages leads to a Denial of Service.
Type Values Removed Values Added
Weaknesses CWE-770
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Samsung Mobile
Samsung Mobile exynos
Vendors & Products Samsung Mobile
Samsung Mobile exynos
Type Values Removed Values Added
Title Denial of Service via 5G NR NAS Registration Handling in Samsung Processors
Weaknesses CWE-665
Type Values Removed Values Added
Description An issue was discovered in MM in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 1580, 2500, W920, W930, W1000, Modem 5123, Modem 5300, and Modem 5400. Incorrect handling of 5G NR NAS registration accept messages leads to a Denial of Service.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
May 6, 2026, 7:37 PM
Reserved
Nov 28, 2025, 12:00 AM
Status
Deferred
Published
May 5, 2026, 4:16 PM
Modified
Nov 4, 2026, 8:10 PM