CVE-2025-58486 Overview
CVE-2025-58486 is an improper input validation vulnerability in the Samsung Account application on Android devices. The flaw exists in versions prior to 15.5.01.1 and allows a local attacker to execute arbitrary script within the application context. Samsung disclosed the issue as part of its December 2025 security maintenance release. The vulnerability requires local access and low privileges, with no user interaction needed for exploitation.
Critical Impact
A local attacker can execute arbitrary script in the context of Samsung Account, leading to integrity loss for account-related data and operations on affected Android devices.
Affected Products
- Samsung Account application versions prior to 15.5.01.1
- Samsung Android devices running vulnerable Samsung Account builds
- Samsung Galaxy ecosystem services dependent on Samsung Account
Discovery Timeline
- 2025-12-02 - CVE-2025-58486 published to the National Vulnerability Database
- December 2025 - Samsung releases the December 2025 Security Maintenance Release addressing the issue
- 2025-12-03 - Last updated in NVD database
Technical Details for CVE-2025-58486
Vulnerability Analysis
The vulnerability stems from improper input validation in the Samsung Account application. Samsung Account is a system-level component on Galaxy devices that manages user identity, subscription services, and synchronization across the Samsung ecosystem. The application fails to properly sanitize inputs that are later interpreted as executable script content. A local attacker can craft malicious input that bypasses validation checks and triggers script execution within the Samsung Account process.
Exploitation requires the attacker to have local access and low-level privileges on the device. No user interaction is required to trigger the flaw. The impact is limited to integrity loss, with no direct confidentiality or availability degradation reported by Samsung. The CWE classification remains unspecified in the NVD record.
Root Cause
The root cause is the absence of proper validation routines on attacker-controllable input fields processed by Samsung Account. Inputs reach a script interpretation path without being filtered, escaped, or restricted to expected character sets. This permits injection of script content that the application subsequently executes.
Attack Vector
The attack vector is local. An attacker with an unprivileged application or shell-level access on the device can deliver crafted input to Samsung Account through exposed inter-process communication interfaces. Once the malicious payload is processed, the script runs with the privileges of the Samsung Account application, enabling tampering with account state or related on-device data. Samsung has not published technical reproduction details, and no public proof-of-concept exists at this time.
The vulnerability cannot be triggered remotely over a network. Exploitation paths typically involve a malicious or compromised secondary app installed on the same device.
Detection Methods for CVE-2025-58486
Indicators of Compromise
- Installed Samsung Account application versions below 15.5.01.1 on Galaxy devices
- Unexpected child processes or script execution originating from the Samsung Account package
- Unauthorized modifications to Samsung Account credentials, tokens, or synchronization settings
- Suspicious inter-process communication directed at Samsung Account components from non-system apps
Detection Strategies
- Inventory installed Samsung Account versions across managed Android fleets using mobile device management (MDM) telemetry
- Monitor Android application logs for anomalous Intent activity targeting the Samsung Account package
- Correlate installation of unverified third-party APKs with subsequent Samsung Account behavior changes
Monitoring Recommendations
- Enforce MDM policies that report device patch level and Samsung security maintenance release version
- Alert when devices remain on Samsung Account builds older than 15.5.01.1 after the December 2025 update is available
- Track sideloaded application installations on managed Galaxy devices, since exploitation typically requires a local malicious app
How to Mitigate CVE-2025-58486
Immediate Actions Required
- Update Samsung Account to version 15.5.01.1 or later through the Galaxy Store or system updates
- Apply the December 2025 Samsung Security Maintenance Release to all managed Galaxy devices
- Audit installed applications on affected devices and remove untrusted or sideloaded packages
Patch Information
Samsung addressed CVE-2025-58486 in Samsung Account version 15.5.01.1. The fix is delivered through the December 2025 Samsung Mobile Security update. Administrators should reference the Samsung Security Advisory for the complete advisory and bulletin details.
Workarounds
- Restrict installation of applications from unknown sources on affected Galaxy devices
- Limit accounts on shared devices to reduce the local attack surface until patches are deployed
- Use MDM controls to enforce minimum Samsung Account application versions on enrolled devices
# Verify installed Samsung Account version via ADB
adb shell dumpsys package com.osp.app.signin | grep versionName
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
