What is CVE-2025-10466?

CVE-2025-10466 is a medium-severity vulnerability in Synology Router_manager, classified under Cross-site Scripting. CVSS score: 5.9/10. Published 2026-05-27.

How severe is CVE-2025-10466?

Medium severity. CVSS v3 base score is 5.9 out of 10.

XSS in Synology Router_manager

CVE-2025-10466

Improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability in Safe Access in Synology Safe Access before 1.3.1-0329 allows remote authenticated users with administrator privileges to read or write sp…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (11.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L.

Affected products

Synology Router_manager — versions 1.3
Synology Safe Access
Synology Safe_access

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security@synology.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2025-10466?: CVE-2025-10466 is a medium-severity vulnerability in Synology Router_manager, classified under Cross-site Scripting. CVSS score: 5.9/10. Published 2026-05-27.
How severe is CVE-2025-10466?: Medium severity. CVSS v3 base score is 5.9 out of 10.