Phoenix Contact CHARX SEC-3000 up to 1.9.0 Modbus TCP denial of service

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.43

Summaryinfo

A vulnerability was found in Phoenix Contact CHARX SEC-3150, CHARX SEC-3100, CHARX SEC-3050 and CHARX SEC-3000 up to 1.9.0 and classified as critical. This impacts an unknown function of the component Modbus TCP. Such manipulation leads to denial of service. This vulnerability is listed as CVE-2026-44107. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Phoenix Contact CHARX SEC-3150, CHARX SEC-3100, CHARX SEC-3050 and CHARX SEC-3000 up to 1.9.0. It has been rated as critical. Affected by this issue is an unknown code of the component Modbus TCP. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

A reboot of the charging controller can be triggered via Modbus TCP without authentication. Therefore, when the Modbus functionality is enabled by opening the port that CharxModbusServer is listening, an unauthenticated attacker can perform a Denial-of-Service attack.

The advisory is shared for download at certvde.com. This vulnerability is handled as CVE-2026-44107 since 05/05/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

Upgrading to version 1.9.1 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: CHARX SEC-3150/CHARX SEC-3100/CHARX SEC-3050/CHARX SEC-3000 1.9.1

Timelineinfo

05/05/2026 CVE reserved
07/30/2026 +86 days Advisory disclosed
07/30/2026 +0 days VulDB entry created
07/30/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: certvde.com
Status: Confirmed

CVE: CVE-2026-44107 (🔒)
GCVE (CVE): GCVE-0-2026-44107
GCVE (VulDB): GCVE-100-384668

Entryinfo

Created: 07/30/2026 09:48
Changes: 07/30/2026 09:48 (54)
Complete: 🔍
Cache ID: 216::103

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