CVE-2026-25774: Ev.energy Information Disclosure Flaw

CVE-2026-25774 Overview

CVE-2026-25774 is a credential exposure vulnerability affecting ev.energy electric vehicle charging infrastructure. The vulnerability allows charging station authentication identifiers to be publicly accessible via web-based mapping platforms, creating a significant security concern for EV charging networks. This issue is classified under CWE-522 (Insufficiently Protected Credentials), indicating that sensitive authentication data is not adequately secured from unauthorized access.

Critical Impact

Exposed authentication identifiers for EV charging stations could enable unauthorized access to charging infrastructure, potentially allowing attackers to manipulate charging sessions, access user data, or disrupt charging services across affected networks.

Affected Products

• ev.energy ev.energy (all versions)

Discovery Timeline

• 2026-02-27 - CVE-2026-25774 published to NVD
• 2026-03-05 - Last updated in NVD database

Technical Details for CVE-2026-25774

Vulnerability Analysis

This vulnerability stems from the improper handling of authentication identifiers within ev.energy's charging station infrastructure. The authentication identifiers, which should remain confidential to ensure secure communication between charging stations and backend systems, are inadvertently exposed through web-based mapping platforms. This exposure creates a network-accessible attack surface that requires no authentication or user interaction to exploit.

The vulnerability affects the confidentiality and integrity of the charging station ecosystem. An attacker with knowledge of these exposed identifiers could potentially impersonate legitimate charging stations, intercept charging session data, or manipulate the charging infrastructure. The exposure through publicly accessible mapping platforms significantly lowers the barrier for attackers to discover and enumerate vulnerable charging stations.

Root Cause

The root cause of CVE-2026-25774 is classified under CWE-522: Insufficiently Protected Credentials. The ev.energy platform fails to adequately protect authentication identifiers that are used for charging station identification and communication. These credentials are exposed through integration with web-based mapping services, likely due to improper API design, overly permissive data sharing policies, or inadequate access controls on the data endpoints serving mapping platform integrations.

Attack Vector

The attack vector for this vulnerability is network-based, allowing remote exploitation without requiring any privileges or user interaction. An attacker can access the publicly exposed authentication identifiers through web-based mapping platforms. Once obtained, these identifiers could be used to:

1. Identify and enumerate charging stations in a target geographic area
2. Potentially authenticate as a legitimate charging station to backend systems
3. Access or manipulate charging session data
4. Disrupt charging services by injecting malicious commands

The vulnerability does not require sophisticated exploitation techniques—the authentication identifiers are simply exposed through legitimate mapping platform interfaces, making reconnaissance and initial access trivial for potential attackers.

Detection Methods for CVE-2026-25774

Indicators of Compromise

• Unusual queries or enumeration attempts against charging station APIs or mapping platform endpoints
• Authentication attempts using identifiers that should not be publicly known
• Anomalous charging station behavior or unauthorized session modifications
• Unexpected API calls from non-standard IP addresses or geographic locations

Detection Strategies

• Monitor API access logs for bulk enumeration of charging station data through mapping platform integrations
• Implement anomaly detection for authentication attempts using exposed credentials
• Track and alert on charging station authentication patterns that deviate from baseline behavior
• Review access logs for mapping platform data endpoints for suspicious query patterns

Monitoring Recommendations

• Enable comprehensive logging for all charging station authentication events
• Implement real-time monitoring of API endpoints that serve data to mapping platforms
• Configure alerts for unusual authentication patterns or credential usage anomalies
• Establish baseline metrics for normal charging station communication patterns to identify deviations

How to Mitigate CVE-2026-25774

Immediate Actions Required

• Review and audit all data shared with web-based mapping platforms to identify exposed credentials
• Implement access controls to restrict authentication identifier visibility in public-facing interfaces
• Rotate affected authentication identifiers for charging stations where exposure is confirmed
• Contact ev.energy support to determine if updated firmware or configuration guidance is available

Patch Information

Organizations should consult the CISA ICS Advisory for official remediation guidance and patch availability. Additional technical details can be found in the GitHub CSAF File. The ev.energy website may also provide vendor-specific update information and support resources.

Workarounds

• Implement network segmentation to isolate charging station infrastructure from public-facing mapping services
• Deploy API gateways with strict data filtering to prevent credential leakage to external platforms
• Enable additional authentication layers beyond the exposed identifiers for critical charging station operations
• Implement IP allowlisting for charging station backend communications where feasible
• Consider temporarily disabling mapping platform integrations until credentials can be properly secured

# Configuration example - Network segmentation for charging infrastructure
# Restrict outbound data to mapping platforms at firewall level
iptables -A OUTPUT -d mapping-platform.example.com -j DROP

# Enable logging for charging station authentication attempts
auditctl -w /var/log/charging-auth.log -p wa -k charging_auth_monitor