Is CVE-2025-66378 in the CISA KEV catalog?

No. CVE-2025-66378 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-66378?

CVE-2025-66378 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2025-66378?

CVE-2025-66378 has an EPSS score of 0.22% (12th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-66378?

Upgrade pexip infinity to 39.0 or later.

CVE & CISA-KEV Catalog

CVE-2025-66378

MEDIUM

5.9

CVSS v3

NVD

Description

Pexip Infinity 38.0 and 38.1 before 39.0 has insufficient access control in the RTMP implementation, allowing an attacker to disconnect RTMP streams traversing a Proxy Node.

CWE-863Incorrect Authorization

How to fix

Remediation Available

pexip infinityNVD

Affected:>= 38.0, < 39.0Fixed in:39.0CVE-2025-66378derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

0.22%probability of exploitation in 30 days

12thpercentile

Low risk: more likely to be exploited than 12% of all known CVEs.

References

Vendor Advisory1

docs.pexip.com

Related Vulnerabilities

Other CWE-863 (Incorrect Authorization) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-22518	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-38035	Critical	9.8	100%	KEV + Ransom	-
CVE-2022-46169	Critical	9.8	100%	KEV	Fix
CVE-2025-29927	Critical	9.1	100%	-	Fix
CVE-2024-38856	Critical	9.8	99%	KEV	Fix
CVE-2020-36289	Medium	5.3	99%	-	Fix

Embed a live status badge for CVE-2025-66378

Markdown

[![CVE-2025-66378](https://tridentstack.com/cve/badge/CVE-2025-66378.svg)](https://tridentstack.com/cve/CVE-2025-66378)

HTML

<a href="https://tridentstack.com/cve/CVE-2025-66378"><img src="https://tridentstack.com/cve/badge/CVE-2025-66378.svg" alt="CVE-2025-66378"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-01-05.