CVE-2022-39030 is a high-severity vulnerability identified in Smart eVision Information Technology Inc.'s product Smart eVision, specifically version 2022.02.21. The vulnerability is classified under CWE-200, which pertains to information exposure due to inadequate authorization controls. In this case, the system information query function within Smart eVision lacks proper authorization checks, allowing an unauthenticated remote attacker to access sensitive system information without explicit permission. The vulnerability has a CVSS 3.1 base score of 7.5, indicating a high severity level. The vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N reveals that the attack can be performed remotely over the network (AV:N) with low attack complexity (AC:L), requires no privileges (PR:N), and no user interaction (UI:N). The scope remains unchanged (S:U), and the impact is high on confidentiality (C:H), with no impact on integrity (I:N) or availability (A:N). This means that an attacker can obtain highly sensitive information from the system, potentially including configuration details, system status, or other data that could facilitate further attacks or reconnaissance, but cannot modify data or disrupt service directly. No known exploits are currently reported in the wild, and no official patches have been linked yet. The vulnerability was published on September 28, 2022, and assigned by the Taiwan Computer Emergency Response Team (twcert). Given the nature of the vulnerability, it primarily exposes confidential information that could be leveraged in subsequent attacks or to gain unauthorized insight into the system environment.

For European organizations using Smart eVision, this vulnerability poses a significant risk to confidentiality. Exposure of sensitive system information can aid attackers in mapping network infrastructure, identifying additional vulnerabilities, or crafting targeted attacks such as spear phishing or lateral movement within networks. Organizations in sectors with high security requirements—such as critical infrastructure, manufacturing, or government—may be particularly at risk if Smart eVision is integrated into their operational technology or IT environments. The lack of authentication requirement and remote exploitability means attackers can attempt to access sensitive information without prior access or user interaction, increasing the attack surface. This could lead to data breaches, loss of competitive advantage, or regulatory non-compliance under GDPR if personal or sensitive data is indirectly exposed. While the vulnerability does not directly impact system integrity or availability, the information gained could facilitate more damaging attacks, making it a serious concern for European entities relying on this product.

Given the absence of an official patch, European organizations should implement compensating controls immediately. These include restricting network access to the Smart eVision system by implementing strict firewall rules and network segmentation to limit exposure to trusted internal networks only. Employ VPNs or zero-trust network access solutions to control remote connections. Monitor network traffic to and from Smart eVision devices for unusual or unauthorized queries. Conduct regular audits of system logs to detect potential unauthorized access attempts. If possible, disable or restrict the system information query function until a patch is available. Engage with the vendor to obtain timelines for patches or updates and apply them promptly once released. Additionally, implement strong monitoring and incident response plans to quickly identify and respond to any exploitation attempts. Educate IT and security teams about this vulnerability to raise awareness and ensure rapid mitigation actions.