CVE-2025-66443 Denial of service in Infinity
Attackers can cause a temporary denial of service in Pexip Infinity via improper input validation in WebRTC signalling when Direct Media is enabled.
- 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-2025-66443?
CVE-2025-66443 is a high-severity denial of service vulnerability in Pexip Pexip Infinity, published on 25 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Pexip Infinity 35.0 through 38.1 before 39.0, in non-default configurations that use Direct Media for WebRTC, has Improper Input Validation in signalling that allows an attacker to trigger a software abort, resulting in a temporary denial of service.
Weakness: CWE-617
Which versions are affected by CVE-2025-66443?
It affects 1 product.
Products include Pexip Pexip Infinity.
How do I fix CVE-2025-66443?
No fix has been published for CVE-2025-66443 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-2025-66443 being exploited?
There is no known exploitation of CVE-2025-66443 in the wild and no public exploit code.
Other vulnerabilities in Pexip Pexip Infinity
Sources
Also known as GHSA-96px-f628-2m88.