9.1

CVE-2026-44091: phoenix contact charx sec-3000 Trust Boundary Violation

CVSS: 9.1v3.1CriticalDeferred
Published 30-07-2026Last modified 31-07-2026
Open JSON

Vulnerability summary

CVE-2026-44091 is a critical (CVSS 9.1) Trust Boundary Violation vulnerability in phoenix contact charx sec-3000. EPSS estimates a 0.59% chance of exploitation in the next 30 days, higher than 47.4% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.1/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.59%
0%100%
Low · +0.23 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 30-07-2026
    PublishedVulnerability first disclosed.
  2. 31-07-2026
    Last modifiedVulnerability information updated.

Description

An unauthenticated remote attacker can post a malicious ID to the MQTT Broker results in the creation of a new configuration entry in the system configuration. This may lead to integrity and availability loss.

CVSS metrics

4 scores · 2 sources · 2 versions

EPSS trend

Probability

0.59%

Chance of exploitation in the next 30 days

Percentile

47%

Versus all other CVEs

30-day change

+0.23 pp

From 0.36% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.59%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Phoenix contact4 products

1 vendor · 4 products

References

1 links