8.6
HIGH CVSS 3.1
CVE-2026-44094
Fallback to second RAUC slot with default credentials
Description

An unauthenticated remote attacker can enforce the system to fall back to a firmware partition with an insecure configuration including default credentials. This could allow the attacker to gain SSH access to the system as an unprivileged user "user-app". Charging could be interrupted.

INFO

Published Date :

July 30, 2026, 7:16 a.m.

Last Modified :

July 30, 2026, 7:16 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-44094 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Phoenixcontact charx_sec-3150
2 Phoenixcontact charx_sec-3100
3 Phoenixcontact charx_sec-3050
4 Phoenixcontact charx_sec-3000
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH 270ccfa6-a436-4e77-922e-914ec3a9685c
CVSS 3.1 HIGH [email protected]
CVSS 4.0 HIGH 270ccfa6-a436-4e77-922e-914ec3a9685c
CVSS 4.0 HIGH [email protected]
Solution
Update firmware to prevent fallback to insecure configurations and unauthorized access.
  • Update the system firmware to the latest version.
  • Change all default credentials immediately.
  • Disable unnecessary services.
  • Monitor system for unauthorized access.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-44094.

URL Resource
https://www.certvde.com/en/advisories/VDE-2026-008/
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-44094 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-44094 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-44094 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-44094 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Jul. 30, 2026

    Action Type Old Value New Value
    Added Affected [{'vendor': 'Phoenix Contact', 'product': 'CHARX SEC-3150', 'versions': [{'status': 'affected', 'version': '1.0.0', 'lessThan': '1.9.1', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Phoenix Contact', 'product': 'CHARX SEC-3100', 'versions': [{'status': 'affected', 'version': '1.0.0', 'lessThan': '1.9.1', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Phoenix Contact', 'product': 'CHARX SEC-3050', 'versions': [{'status': 'affected', 'version': '1.0.0', 'lessThan': '1.9.1', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Phoenix Contact', 'product': 'CHARX SEC-3000', 'versions': [{'status': 'affected', 'version': '1.0.0', 'lessThan': '1.9.1', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}]
    Added Description An unauthenticated remote attacker can enforce the system to fall back to a firmware partition with an insecure configuration including default credentials. This could allow the attacker to gain SSH access to the system as an unprivileged user "user-app". Charging could be interrupted.
    Added CVSS V4.0 AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
    Added CWE CWE-636
    Added Reference https://www.certvde.com/en/advisories/VDE-2026-008/
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.