What is the CVSS score of CVE-2025-54159?

CVE-2025-54159 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N. EPSS exploitation probability: 0.1%.

How to fix or mitigate CVE-2025-54159?

Within 24 hours: Identify all systems running Synology BeeDrive desktop and document current versions. Within 7 days: Upgrade all BeeDrive installations to version 1.4.2-13960 or later; deploy through standard endpoint management channels with rollback plan. Within 30 days: Verify successful patch deployment across 100% of endpoints through inventory audit and consider reviewing file access audit logs for signs of unauthorized deletion activity.

Beedrive CVE-2025-54159

Q: Which versions of Beedrive are affected by CVE-2025-54159?

Synology BeeDrive desktop versions prior to 1.4.2-13960 contain a missing authorization vulnerability that allows remote attackers to delete arbitrary files, potentially resulting in data loss or…. A patch is available.

EUVD-2025-201166 HIGH

Missing Authorization (CWE-862)

2025-12-04 security@synology.com

Authentication Bypass Synology Beedrive

7.5

CVSS 3.1 · Vendor: synology

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Vulnerability Assessment

Weakness	CWE CWE-862 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V8 - Authorization Authorization checks on every request MITRE ATT&CK 1 technique across 1 tactic: Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 7.5 (HIGH).

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 15, 2026

Missing authorization vulnerability in BeeDrive in Synology BeeDrive for desktop before 1.4.2-13960 allows remote attackers to delete arbitrary files via unspecified vectors.

Earlier versions of this analysis (1)

v1 Mar 15, 2026 - 16:35 CVSS 7.5

RemediationAI

Monitor vendor advisories for patches. Apply mitigations such as network segmentation, access restrictions, and monitoring.

Affected VersionsENISA

BeeDrive for desktop * <1.4.2-13960

Affected Packages

euvd beedrive_for_desktop fix: 1.4.2-13960

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Missing Authorization (CWE-862).

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (synology) PRIMARY 7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Primary rating from Vendor (synology) · only source for this CVE.

CVSS VectorVendor: synology

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Lifecycle Timeline

Analysis Updated

Apr 16, 2026 - 06:23 EUVD-patch-fix

executive summary

Patch available

Apr 16, 2026 - 05:29 EUVD

1.4.2-13960

CVE Published

Dec 04, 2025 - 16:16 nvd

HIGH 7.5

Executive ViewAI

Why It Matters

Synology BeeDrive desktop versions prior to 1.4.2-13960 contain a missing authorization vulnerability that allows remote attackers to delete arbitrary files, potentially resulting in data loss or service disruption for users relying on this file synchronization platform. Organizations deploying BeeDrive across their workforce face risk of unauthorized file deletion without proper access controls.

Business Impact: High

Compensating Controls

Apply vendor patch. Vendor-released patch: Synology BeeDrive desktop 1.4.2-13960 or later.

Threat Intelligence Overview

EPSS Score

0.1%

Top 76% exploitable

Data Quality

4 sources

Confidence: Medium

EUVD

NVD

CVE.org

EPSS

VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 0.1%

Patch available Yes

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.