CVE-2025-66363
Published: 03 March 2026
Summary
CVE-2025-66363 is a high-severity Improper Initialization (CWE-665) vulnerability in Samsung Exynos 2200 Firmware. Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked at the 20.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Ensures shared resources are explicitly initialized or cleared on allocation, preventing exposure of prior contents to new users or processes.
Mandates that every instance begins in a known (presumably clean) state, eliminating reliance on residual or uninitialized state left by prior executions.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Remote network message exploitation of improper memory initialization directly enables application/system DoS via crash or resource exhaustion (T1499.004).
NVD Description
An issue was discovered in LBS in Samsung Mobile Processor Exynos 2200. There was no check for memory initialization within DL NAS Transport messages.
Deeper analysisAI
CVE-2025-66363 is a vulnerability in the LBS component of the Samsung Mobile Processor Exynos 2200, where there is no check for memory initialization within DL NAS Transport messages. Published on 2026-03-03, this issue falls under CWE-665 (Improper Initialization) and carries a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
The vulnerability enables remote exploitation over the network with low complexity, requiring no privileges, user interaction, or authentication. Attackers can trigger it to cause high-impact denial of service, such as system crashes or resource exhaustion due to uninitialized memory handling in DL NAS Transport messages.
Samsung provides mitigation details through their product security updates portal at https://semiconductor.samsung.com/support/quality-support/product-security-updates/ and the dedicated CVE page at https://semiconductor.samsung.com/support/quality-support/product-security-updates/cve-2025-66363/. Security practitioners should consult these resources for patch availability and deployment guidance on affected Exynos 2200 devices.
Details
- CWE(s)