CVE-2025-55634 Denial of service in n/a

High 7.5 Published Updated

Unauthorized attackers can cause a Denial of Service on Reolink video doorbells by initiating numerous simultaneous ffmpeg-based stream pushes.

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

What is CVE-2025-55634?

CVE-2025-55634 is a high-severity denial of service vulnerability in n/a, published on 22 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Incorrect access control in the RTMP server settings of Reolink Smart 2K+ Plug-in Wi-Fi Video Doorbell with Chime - firmware v3.0.0.4662_2503122283 allows unauthorized attackers to cause a Denial of Service (DoS) via initiating a large number of simultaneous ffmpeg-based stream pushes.

Weakness: CWE-400

Which versions are affected by CVE-2025-55634?

It affects 1 product.

Products include Reolink Smart 2k\+ Plug-in Wi-Fi Video Doorbell With Chime Firmware.

How do I fix CVE-2025-55634?

No fix has been published for CVE-2025-55634 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2025-55634 being exploited?

There is no known exploitation of CVE-2025-55634 in the wild and no public exploit code.

Sources

Also known as GHSA-rcr6-5574-8q33.

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