What is CVE-2025-54159?

CVE-2025-54159 is a high-severity vulnerability in Synology Beedrive, classified under Missing Authorization. CVSS score: 7.5/10. Published 2025-12-04.

How severe is CVE-2025-54159?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Synology Beedrive

CVE-2025-54159

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.

Vulnerability class: Broken Access Control

Published 2025-12-04 · last modified 2026-09-25.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.004 (32.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: -0.000

Affected products

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

www.synology.com/en-global/security/advisory/Synology_SA_25_08 (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2025-54159?: CVE-2025-54159 is a high-severity vulnerability in Synology Beedrive, classified under Missing Authorization. CVSS score: 7.5/10. Published 2025-12-04.
How severe is CVE-2025-54159?: High severity. CVSS v3 base score is 7.5 out of 10.