Is CVE-2025-66377 in the CISA KEV catalog?

No. CVE-2025-66377 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-66377?

CVE-2025-66377 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2025-66377?

CVE-2025-66377 has an EPSS score of 0.19% (9th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-66377?

Upgrade pexip infinity to 39.0 or later.

CVE & CISA-KEV Catalog

CVE-2025-66377

HIGH

7.5

CVSS v3

NVD

Description

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 of other nodes within the installation.

CWE-306Missing Authentication for Critical Function

How to fix

Remediation Available

pexip infinityNVD

Affected:< 39.0Fixed in:39.0CVE-2025-66377derived 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 VectorAdjacent

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.19%probability of exploitation in 30 days

9thpercentile

Low risk: more likely to be exploited than 9% of all known CVEs.

References

Vendor Advisory1

docs.pexip.com

Related Vulnerabilities

Other CWE-306 (Missing Authentication for Critical Function) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-10271	High	7.5	100%	KEV + Ransom	-
CVE-2023-42793	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2025-3248	Critical	9.8	100%	KEV	Fix
CVE-2022-1388	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2021-37415	Critical	9.8	100%	KEV	-
CVE-2023-21839	High	7.5	100%	KEV	-

Embed a live status badge for CVE-2025-66377

Markdown

[![CVE-2025-66377](https://tridentstack.com/cve/badge/CVE-2025-66377.svg)](https://tridentstack.com/cve/CVE-2025-66377)

HTML

<a href="https://tridentstack.com/cve/CVE-2025-66377"><img src="https://tridentstack.com/cve/badge/CVE-2025-66377.svg" alt="CVE-2025-66377"></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.