CVE-2025-54158 Overview
CVE-2025-54158 is a missing authentication for critical function vulnerability [CWE-306] affecting Synology BeeDrive for desktop before version 1.4.2-13960. The flaw allows local users to execute arbitrary code through unspecified vectors. Synology disclosed the issue in Synology Security Advisory SA-25-08.
The vulnerability requires local access and low privileges but yields high impact across confidentiality, integrity, and availability. Successful exploitation gives an attacker code execution in the context of the BeeDrive desktop client.
Critical Impact
A local, low-privileged user can execute arbitrary code on systems running vulnerable BeeDrive desktop clients, leading to full compromise of the user session and any data synchronized through BeeDrive.
Affected Products
- Synology BeeDrive for desktop versions prior to 1.4.2-13960
- Windows and macOS desktop installations of BeeDrive client
- Endpoints synchronizing data with Synology BeeStation or BeeDrive services
Discovery Timeline
- 2025-12-04 - CVE-2025-54158 published to the National Vulnerability Database
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-54158
Vulnerability Analysis
The vulnerability sits in a critical function within the BeeDrive desktop client that fails to enforce authentication before performing privileged operations. A local user can invoke this function without providing valid credentials or tokens. The result is arbitrary code execution within the scope of the BeeDrive process.
Because BeeDrive synchronizes user files between local endpoints and Synology storage, code execution in this context exposes any data managed by the client. Attackers can pivot from this foothold to persist on the endpoint or tamper with synchronized cloud content.
Root Cause
The root cause is classified as CWE-306: Missing Authentication for Critical Function. A sensitive interface exposed by the BeeDrive client, likely a local inter-process communication (IPC) endpoint, service handler, or named pipe, accepts requests without validating the caller's identity. Any process running under a local user account can reach this interface and issue commands that trigger code execution paths.
Attack Vector
Exploitation requires local access to the machine running the vulnerable BeeDrive client. An attacker with an unprivileged shell, a malicious application, or a foothold from a prior phishing or drive-by download stage can interact with the exposed BeeDrive component. No user interaction is required once the attacker is on the endpoint.
Synology has not disclosed the specific vector, and no public proof-of-concept exploit is available. The EPSS score is 0.191%, indicating low likelihood of observed exploitation activity in the near term.
No verified exploit code is publicly available. Refer to the Synology Security Advisory SA-25-08 for vendor guidance.
Detection Methods for CVE-2025-54158
Indicators of Compromise
- Unexpected child processes spawned by the BeeDrive client executable on Windows or macOS endpoints
- Anomalous file writes or executable drops within BeeDrive-managed synchronization directories
- Local IPC connections to BeeDrive service endpoints originating from non-BeeDrive processes
- BeeDrive client versions below 1.4.2-13960 reported in software inventory scans
Detection Strategies
- Inventory endpoints for installed BeeDrive versions and flag any release earlier than 1.4.2-13960
- Monitor process lineage where the BeeDrive desktop client launches shells, scripting interpreters, or living-off-the-land binaries
- Alert on unauthorized local processes connecting to BeeDrive named pipes, Unix domain sockets, or loopback listeners
Monitoring Recommendations
- Enable command-line and process-creation auditing on endpoints running BeeDrive
- Forward endpoint telemetry to a centralized data lake for retrospective hunting against BeeDrive-related process trees
- Track BeeDrive client updates through patch management reporting to confirm remediation coverage
How to Mitigate CVE-2025-54158
Immediate Actions Required
- Upgrade all Synology BeeDrive desktop installations to version 1.4.2-13960 or later
- Identify endpoints running vulnerable BeeDrive versions using software inventory tooling and prioritize patching
- Restrict local access to shared and multi-user workstations where BeeDrive is installed until patching completes
Patch Information
Synology has released BeeDrive for desktop version 1.4.2-13960 to remediate this vulnerability. Administrators should deploy the updated client from Synology's download portal. Full details are available in Synology Security Advisory SA-25-08.
Workarounds
- Uninstall the BeeDrive desktop client on systems where synchronization is not required until patches are applied
- Limit interactive local logons on endpoints running vulnerable BeeDrive versions to reduce exposure to untrusted users
- Apply application control policies to prevent unauthorized processes from interacting with BeeDrive IPC interfaces
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
