CHARX SEC-3150: Not Failing Securely
CVE-2026-44094 is a high-severity not failing securely vulnerability in CHARX SEC-3150 from Phoenix Contact, with a CVSS 3.1 base score of 8.6 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists version 1.9.1 as the first without the flaw, so updating CHARX SEC-3150 to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.45% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update CHARX SEC-3150 to 1.9.1 or a later version.
- Update CHARX SEC-3100 to 1.9.1 or a later version.
- Update CHARX SEC-3050 to 1.9.1 or a later version.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Phoenix Contact | CHARX SEC-3150 | 1.0.0 up to, but not including, 1.9.1 | 1.9.1 |
| Phoenix Contact | CHARX SEC-3100 | 1.0.0 up to, but not including, 1.9.1 | 1.9.1 |
| Phoenix Contact | CHARX SEC-3050 | 1.0.0 up to, but not including, 1.9.1 | 1.9.1 |
| Phoenix Contact | CHARX SEC-3000 | 1.0.0 up to, but not including, 1.9.1 | 1.9.1 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- LowSome restricted data can be read.
- Integrity
- LowLimited modification of data is possible.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H. Scored by CNA (cert.vde.com).
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 8.3 | High | CNA (cert.vde.com) |
| CVSS 3.1 | 8.6 | High | CNA (cert.vde.com) |
Official 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.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Not Failing Securely
When the product encounters an error condition or failure, its design requires it to fall back to a state that is less secure than other options that are available, such as selecting the weakest encryption algorithm or using the most permissive access control restrictions.
How developers prevent this class of flaw
- Subdivide and allocate resources and components so that a failure in one part does not affect the entire product.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
References
Other references
Other vulnerabilities in CHARX SEC-3150
- 9.8 Critical severity
- 9.8 Critical severity
- 7.5 High severity
- 7.8 High severity
- 9.8 Critical severity
- 9.8 Critical severity
Recent Not Failing Securely vulnerabilities
- 8.2 High severity
- 8.6 High severity
- 7.5 High severity
- 9.1 Critical severity
- 7.8 High severity
- 9.8 Critical severity
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