Philips IntelliBridge EC 40 and EC 80 Hub Authentication Bypass Using an Alternate Path or Channel

published 2021-12-27 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-19738

cvss: 8.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits: 0; none known

The standard access path of the IntelliBridge EC 40 and 60 Hub (C.00.04 and prior) requires authentication, but the product has an alternate path or channel that does not require authentication.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSMA-21-322-01 updated 2021-11-18 cvss 8.1

Philips IntelliBridge EC 40 and EC 80 Hub

Philips IntelliBridge EC 40 Hub <= C.00.04 Philips IntelliBridge EC 80 Hub <= C.00.04
affected: vendor fix usa.philips.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.1	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
NVD	3.1	8.8	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	5.8	AV:A/AC:L/Au:N/C:P/I:P/A:P

Affected products

Philips IntelliBridge EC 40 Hub
Philips IntelliBridge EC 80 Hub

Classification

Weakness

CWE-288 Authentication Bypass Using an Alternate Path or Channel

References

cisa.gov /uscert/ics/advisories/icsma-21-322-01
third-party-advisory, us-government-resource

Sources

CVE List CVE-2021-33017
NVD CVE-2021-33017

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary