CVE-2026-81557
Synology DiskStation Manager DSMNotify Cross-Site Scripting Vulnerability
Description
An improper neutralization of input during web page generation vulnerability in the DSMNotify in Synology DiskStation Manager (DSM) before 7.3.2-86009-5 and 7.4.1-90080-1 allows remote authenticated users to read or write specific files.
INFO
Published Date :
Nov. 12, 2026, 3:36 a.m.
Last Modified :
Nov. 12, 2026, 3:36 a.m.
Remotely Exploit :
Yes !
Source :
synology
Affected Products
The following products are affected by CVE-2026-81557
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | db201096-a0cc-46c7-9a55-61d9e221bf01 | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE |
Solution
- Update Synology DSM to version 7.3.2-86009-5 or later.
- Update Synology DSM to version 7.4.1-90080-1 or later.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-81557 vulnerability anywhere in the article.