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4.9

Synology DiskStation DSM can crash from port‑forward abuse

CVE-2017-12076 · published 9 years ago
Summary

If someone who can log into your Synology DiskStation uses the port‑forward feature in a certain way, they can fill up the device’s memory and make it stop working. This creates a denial‑of‑service condition, meaning legitimate users lose access. Update the DiskStation Manager to the latest release (6.1.1‑15088 or newer) to close the problem.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
synology diskstation_manager <= 6.1
6.1.1
cpe:2.3:o:synology:diskstation_manager:*:*:*:*:*:*:*:*
Original advisory text
Uncontrolled Resource Consumption vulnerability in SYNO.Core.PortForwarding.Rules in Synology DiskStation (DSM) before 6.1.1-15088 allows remote authenticated attacker to exhaust the memory resourc...
Uncontrolled Resource Consumption vulnerability in SYNO.Core.PortForwarding.Rules in Synology DiskStation (DSM) before 6.1.1-15088 allows remote authenticated attacker to exhaust the memory resources of the machine, causing a denial of service attack.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker partial control (estimated)
Severity
4.9 Medium
Exploitation
1% chance of attack within 30 days
Type
CWE-400Uncontrolled Resource Consumption
Timeline
Published28 Aug 2017
Updated31 Oct 2026
First seen29 Sep 2026
Sources
CVE-2017-12076 · NVD
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