PT-2024-28463 · Synology · Synology Router Manager

Sharon Brizinov + 1 · Published 2024-06-28 · Updated 2025-08-07 · CVE-2024-39347

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Synology Router Manager versions prior to 1.2.5-8227-11 Synology Router Manager versions prior to 1.3.1-9346-8

Description The issue is related to incorrect default permissions in the firewall functionality, allowing man-in-the-middle attackers to access sensitive intranet resources. This is also described as an improper access control firewall bypass vulnerability.

Recommendations For versions prior to 1.2.5-8227-11, update to version 1.2.5-8227-11 or later. For versions prior to 1.3.1-9346-8, update to version 1.3.1-9346-8 or later.

Fix

Incorrect Default Permissions

Weakness Enumeration

CWE-276

Related Identifiers

CVE-2024-39347

ZDI-24-832

Affected Products

Synology Router Manager

References · 5

• https://zerodayinitiative.com/advisories/ZDI-24-832 · Security Note
• https://synology.com/en-global/security/advisory/Synology_SA_23_16 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-39347 · Security Note
• https://osv.dev/vulnerability/CVE-2024-39347 · Vendor Advisory
• https://t.me/cveNotify/131240 · Telegram Post