Overview
The cybersecurity world is rife with complex challenges, and the recent discovery of a severe vulnerability in Samsung’s line of mobile and wearable processors adds another dimension to this complexity. This vulnerability, designated as CVE-2025-47202, affects a broad range of Samsung’s processors, including its mobile, wearable, and modem processors. With a CVSS severity score of 9.1, it poses a significant risk to the integrity, confidentiality, and availability of the systems that it affects.
This vulnerability is particularly concerning because of its potential impact. If successfully exploited, it could lead to a complete system compromise or data leakage. Given the widespread use of Samsung’s processors in various devices globally, this vulnerability requires immediate attention and remediation from both Samsung and the users of its processors.
Vulnerability Summary
CVE ID: CVE-2025-47202
Severity: Critical (9.1 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise and data leakage
Affected Products
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Product | Affected Versions
Samsung Mobile Processor | Exynos 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 1580
Samsung Wearable Processor | 9110, W920, W930, W1000
Samsung Modem | 5123, 5300, 5400
How the Exploit Works
The vulnerability lies in the Radio Resource Control (RRC) of the affected Samsung processors. The RRC lacks a length check mechanism, which can lead to out-of-bounds writes. An attacker could exploit this vulnerability by sending specially crafted data to the target system. Because of the absence of a length check, the system would write this data beyond the intended boundary, potentially overwriting other important data or code and leading to unexpected behavior, including a system crash or unauthorized code execution.
Conceptual Example Code
Here is a conceptual example of how an attacker might exploit this vulnerability:
POST /RRC/endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/octet-stream
{ "payload": "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA..." }In this example, the attacker sends a large amount of data (‘A’) to the RRC endpoint. The target system, lacking a length check mechanism, attempts to write all of this data in a location that cannot accommodate it, leading to an out-of-bounds write and potential system compromise.