CVE-2026-100291 Initialization of a resource with an insecure default in Anjvision YSSD-RTMP-H5

Critical 9.3 Published Updated

Unauthorized attackers can access sensitive device operations via unauthenticated ONVIF endpoints in Anjvision YSSD-RTMP-H5 firmware.

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-2026-100291?

CVE-2026-100291 is a critical missing authorization vulnerability in Anjvision YSSD-RTMP-H5, published on 29 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In Anjvision YSSD‑RTMP‑H5 firmware version 3.3.2.4, several ONVIF service endpoints process management requests without enforcing required authentication. This could allow an unauthorized attacker to access sensitive device operations.

Weakness: CWE-1188

Which versions are affected by CVE-2026-100291?

How do I fix CVE-2026-100291?

No fix has been published for CVE-2026-100291 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-100291 being exploited?

There is no known exploitation of CVE-2026-100291 in the wild and no public exploit code.

Sources

Also known as GHSA-x4gx-cgh5-8gqx.

Is CVE-2026-100291 in your software?

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