CVE-2025-66378: Pexip Infinity · Incorrect Authorization
Affects Pexip InfinitySource CVE Database V5
Not known to be exploited · CVSS 5.9 Medium.
Data as of 26 Oct 2026, 06:26 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 16% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 25 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Pexip Infinity | Affected
| Fixed in– |
AI-suggested
To mitigate this vulnerability, organizations should upgrade Pexip Infinity to version 39.0 or later once the patch is released by the vendor. Until then, network-level controls should be enforced to restrict access to Proxy Nodes, limiting exposure to trusted internal networks only. Implementing firewall rules or VPN access can reduce the attack surface. Monitoring RTMP stream stability and logging unusual disconnection events can help detect exploitation attempts. Additionally, organizations should review and harden access control policies around streaming infrastructure and consider segmenting video conferencing components from general network traffic. Regularly updating and patching Pexip Infinity and related components is critical. Engaging with Pexip support for interim mitigations or workarounds is recommended if patching is delayed.
Description
CVE-2025-66378 is a medium severity vulnerability in Pexip Infinity versions 38.0 and 38.1 prior to 39.0, caused by incorrect authorization in the RTMP implementation. This flaw allows unauthenticated attackers to disconnect RTMP streams passing through a Proxy Node, impacting availability but not confidentiality or integrity. Exploitation requires network access but no user interaction or privileges. The vulnerability affects organizations using Pexip Infinity for video conferencing and streaming, potentially disrupting communication services. European organizations relying on Pexip, especially in countries with high adoption of video conferencing infrastructure, are at risk. Mitigation involves upgrading to version 39.0 or later once available and restricting network access to Proxy Nodes.