Home/CVE/An issue was discovered in USIM in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2
CVE

CVE-2025-59440

An issue was discovered in USIM in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2

An issue was discovered in USIM 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. Improper handling of SIM card proactive commands leads to a Denial of Service.

HIGH · CVSS 7.5 EPSS 0.00063
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-400Uncontrolled Resource Consumption
▤

Affected Products & Versions

20
samsung exynos 990 firmwareall versions
samsung exynos 980 firmwareall versions
samsung exynos 850 firmwareall versions
samsung exynos 1080 firmwareall versions
samsung exynos 1280 firmwareall versions
samsung exynos 1330 firmwareall versions
samsung exynos 1380 firmwareall versions
samsung exynos 1480 firmwareall versions
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD06 Apr 2026 · 06:16 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://semiconductor.samsung.com/support/quality-support/product-security-updates/Vendor Advisory
https://semiconductor.samsung.com/support/quality-support/product-security-updates/cve-2025-59440/Vendor Advisory
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