CVE-2025-20971 in Flow
Summary
by MITRE • 05/07/2025
Improper input validation in Samsung Flow prior to version 4.9.17.6 allows local attackers to access data within Samsung Flow.
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Analysis
by VulDB Data Team • 05/07/2025
The vulnerability identified as CVE-2025-20971 represents a critical weakness in Samsung Flow's input validation mechanisms that affects versions prior to 4.9.17.6. This issue stems from inadequate sanitization of user inputs within the Samsung Flow application, creating a pathway for local attackers to exploit the system and gain unauthorized access to sensitive data stored within the application's operational environment. The vulnerability specifically targets the application's failure to properly validate and sanitize input parameters that are processed by the Samsung Flow service, potentially allowing malicious actors to manipulate the application's behavior through crafted inputs. The weakness exists in the application's data handling processes where insufficient validation allows attacker-controlled data to be processed without proper security checks, leading to potential data exposure and unauthorized access scenarios.
This vulnerability falls under the category of improper input validation, which is classified as CWE-20 by the Common Weakness Enumeration standard. The technical flaw manifests as a failure in the application's input sanitization routines, where the Samsung Flow application does not adequately verify or sanitize data received from local sources before processing or storing it. The operational impact of this vulnerability extends beyond simple data access, as local attackers could potentially exploit this weakness to extract confidential information, manipulate application data, or potentially escalate privileges within the Samsung Flow environment. The vulnerability's local attack vector means that an attacker must already have access to the device or application environment, but once exploited, the implications can be severe given the nature of the data exposure risk.
The implications of CVE-2025-20971 align with ATT&CK technique T1059.001 for command and scripting interpreter usage, as attackers may leverage this vulnerability to execute unauthorized commands or access sensitive data within the Samsung Flow application. Security professionals should note that this vulnerability represents a significant risk to Samsung Flow users who have not updated to version 4.9.17.6 or later, as the application's data protection mechanisms are compromised. The vulnerability's impact is particularly concerning in enterprise environments where Samsung Flow may be used to manage sensitive business information or personal data, as the local access requirement does not necessarily limit the potential damage that can be inflicted. Organizations utilizing Samsung Flow should immediately implement remediation measures, including updating to the patched version, conducting security assessments of affected systems, and monitoring for potential exploitation attempts.
The exploitation of this vulnerability requires local system access and leverages the application's insufficient input validation to bypass security controls. Attackers can craft malicious inputs that exploit the validation gaps to access data that should otherwise be protected by the application's security mechanisms. This type of vulnerability is particularly dangerous because it can be exploited by attackers who already have access to the target system, potentially allowing them to escalate their privileges or extract sensitive information without requiring additional attack vectors. The remediation approach must include updating to Samsung Flow version 4.9.17.6 or later, which contains the necessary patches to address the input validation flaws. Additionally, system administrators should implement monitoring protocols to detect potential exploitation attempts and consider additional security measures such as input filtering, access controls, and regular security assessments to prevent similar vulnerabilities from being introduced in future versions.