eCharge Hardy Barth cPH2 Charging Station/cPP2 Charging Station up to 2.2.0 missing authentication

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.8$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in eCharge Hardy Barth cPH2 Charging Station and cPP2 Charging Station up to 2.2.0. This impacts an unknown function. The manipulation leads to missing authentication. This vulnerability is uniquely identified as CVE-2025-27803. The attack can only be initiated within the local network. No exploit exists.

Detailsinfo

A vulnerability was found in eCharge Hardy Barth cPH2 Charging Station and cPP2 Charging Station up to 2.2.0 and classified as critical. This issue affects some unknown functionality. The manipulation with an unknown input leads to a missing authentication vulnerability. Using CWE to declare the problem leads to CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The devices do not implement any authentication for the web interface or the MQTT server. An attacker who has network access to the device immediately gets administrative access to the devices and can perform arbitrary administrative actions and reconfigure the devices or potentially gain access to sensitive data.

The weakness was disclosed by Stefan Viehböck. The advisory is shared at r.sec-consult.com. The identification of this vulnerability is CVE-2025-27803 since 03/07/2025. The exploitation is known to be easy. The attack can only be initiated within the local network. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/21/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-16053). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.8

VulDB Base Score: 8.8
VulDB Temp Score: 8.8
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: Missing authentication
CWE: CWE-306 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/07/2025 🔍
05/21/2025 +74 days 🔍
05/21/2025 +0 days 🔍
05/21/2025 +0 days 🔍

Sourcesinfo

Advisory: r.sec-consult.com
Researcher: Stefan Viehböck
Status: Not defined

CVE: CVE-2025-27803 (🔍)
GCVE (CVE): GCVE-0-2025-27803
GCVE (VulDB): GCVE-100-309857
EUVD: 🔍

Entryinfo

Created: 05/21/2025 15:19
Updated: 05/21/2025 22:01
Changes: 05/21/2025 15:19 (53), 05/21/2025 22:01 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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