CVE-2025-29845 Path traversal in Synology Router Manager (SRM)

Medium 4.3 Published Updated

Remote authenticated users can read .srt files via a path traversal vulnerability in the VideoPlayer2 subtitle CGI.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-29845?

CVE-2025-29845 is a medium-severity path traversal vulnerability in Synology Router Manager, published on 4 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability in VideoPlayer2 subtitle cgi allows remote authenticated users to read .srt files.

Weakness: CWE-22

Which versions are affected by CVE-2025-29845?

It affects 1 product.

Products include Synology Router Manager.

How do I fix CVE-2025-29845?

No fix has been published for CVE-2025-29845 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2025-29845 being exploited?

There is no known exploitation of CVE-2025-29845 in the wild and no public exploit code.

All Synology Router Manager vulnerabilities

Sources

Also known as GHSA-7p7p-qrx2-wwhc.

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