What is CVE-2025-66377?

CVE-2025-66377 is a high-severity vulnerability in Pexip Infinity, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2025-12-25.

How severe is CVE-2025-66377?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Pexip Infinity

CVE-2025-66377

Pexip Infinity before 39.0 has Missing Authentication for a Critical Function in a product-internal API, allowing an attacker (who already has access to execute code on one node within a Pexip Infinity installation) to impact the operation…

Vulnerability class: Broken Authentication

EPSS: 0.002 (9.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Pexip Infinity — versions 0
Pexip Pexip_infinity

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

cve@mitre.org (Vendor Advisory)

Frequently asked questions

What is CVE-2025-66377?: CVE-2025-66377 is a high-severity vulnerability in Pexip Infinity, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2025-12-25.
How severe is CVE-2025-66377?: High severity. CVSS v3 base score is 7.5 out of 10.