High severity · published Feb 3, 2026
CVE-2025-59439
An issue was discovered in Samsung Mobile Processor, Wearable Processor and Modem Exynos 980, 990, 850, 1080, 9110, W920, W930, W1000 and Modem 5123
7.5
CVSS
0.5%
EPSS
No
On KEV
Description
An issue was discovered in Samsung Mobile Processor, Wearable Processor and Modem Exynos 980, 990, 850, 1080, 9110, W920, W930, W1000 and Modem 5123. Incorrect handling of NAS Registration messages leads to a Denial of Service because of Improper Handling of Exceptional Conditions.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 41% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
E1
Exynos 1080 Firmware · Samsung
All versions, or not specified · source: NVD
E8
Exynos 850 Firmware · Samsung
All versions, or not specified · source: NVD
E9
Exynos 9110 Firmware · Samsung
All versions, or not specified · source: NVD
E9
Exynos 980 Firmware · Samsung
All versions, or not specified · source: NVD
E9
Exynos 990 Firmware · Samsung
All versions, or not specified · source: NVD
EM
Exynos Modem 5123 Firmware · Samsung
All versions, or not specified · source: NVD
EW
Exynos W1000 Firmware · Samsung
All versions, or not specified · source: NVD
EW
Exynos W920 Firmware · Samsung
All versions, or not specified · source: NVD
EW
Exynos W930 Firmware · Samsung
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-59439
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-59439
Vendor Advisory
https://semiconductor.samsung.com/support/quality-support/product-security-updates/
Vendor Advisory
https://semiconductor.samsung.com/support/quality-support/product-security-updates/cve-2025-59439/
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