CVE-2026-22539 is classified as a medium-severity vulnerability with a CVSS score of 5.3. This vulnerability allows an attacker with some knowledge of the Open Charge Point Protocol (OCPP) version 1.6 to obtain information about the charger without authentication. The lack of authentication in service interaction exposes sensitive details that could be leveraged for further attacks.
The risk to organizations includes unauthorized access to charger information, which may lead to further exploitation or compromise of connected systems. Although this vulnerability is categorized as medium severity, it is critical for organizations using the affected systems to understand its potential impact and prioritize remediation.
Currently, there are no known public exploits or proof-of-concept (PoC) code available. However, organizations should monitor the situation as vulnerabilities may evolve. Given the nature of the vulnerability, it is recommended that organizations prioritize patching this vulnerability as part of their security measures.
Organizations should address this vulnerability in their priority patch cycle, as it could pose significant risks to their operational security.
Vulnerability Details
The official description of this vulnerability states: As the service interaction is performed without authentication, an attacker with some knowledge of the protocol could obtain information about the charger via OCPP v1.6.
The vulnerability type has been identified as CWE-201, which indicates information exposure due to the lack of authentication.
The vulnerability has a CVSS score of 5.3, falling into the medium severity category. This score reflects the potential impact and ease of exploitation associated with this vulnerability.
Technical Analysis
The root cause of CVE-2026-22539 is the service interaction occurring without proper authentication. This oversight allows attackers to gather information about the charger through the OCPP v1.6 protocol.
The attack vector for this vulnerability is classified as adjacent, indicating that an attacker must be on the same local network segment as the vulnerable device to exploit this vulnerability. The attack complexity is considered low, requiring no special privileges or user interaction, making it easier for an attacker to exploit.
In terms of impact, the confidentiality impact is rated as low, while the integrity and availability impacts are assessed as none. This indicates that while information can be retrieved, the overall system remains stable and unaffected.
Risk & Impact Analysis
Real-world deployment of this vulnerability poses a risk to organizations utilizing OCPP v1.6. Attackers may leverage this vulnerability to gather sensitive information about chargers, potentially leading to further exploitation and unauthorized access to connected systems.
The blast radius of this vulnerability is significant, as it could affect multiple devices within the same network segment. Organizations must assess their exposure and take appropriate measures to mitigate this risk.
Given the CVSS score of 5.3 and the lack of known exploits, organizations should address this vulnerability in their priority patch cycle, as remediation is essential to maintaining security posture.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
Specific version information for the affected products is currently unavailable. Organizations should assume that all versions of OCPP prior to the vendor patch are potentially affected.
Mitigation & Remediation
Organizations should prioritize patching this vulnerability as soon as a fix is made available. Regularly updating software and components is essential to maintaining security. If a patch is not available, organizations should implement workarounds such as limiting access to the affected systems and monitoring for unusual activity.
Detection Guidance
Monitor logs for unauthorized access attempts to the charger and other related systems. Look for behavioral anomalies that could indicate exploitation attempts. Implement network signatures to detect unusual traffic patterns associated with the vulnerability.
AppSecure Threat Intelligence Insight
CVE-2026-22539 represents a critical reminder of the importance of authentication and access controls in IoT protocols. Security teams should review their current implementations of OCPP and similar protocols to ensure that they have robust security measures in place.
This vulnerability highlights a pattern where lack of authentication can lead to information exposure. Organizations must ensure they adhere to security best practices in their deployment of protocols to mitigate risks.
For further guidance on securing your systems, organizations can refer to resources on penetration testing and application security assessments to ensure comprehensive coverage of potential vulnerabilities.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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