CVE-2025-62938 is a missing authorization vulnerability identified in Reoon Technology's Reoon Email Verifier software, affecting all versions up to and including 2.0.1. The vulnerability arises from incorrectly configured access control security levels, allowing attackers with limited privileges (PR:L) to bypass authorization checks and perform unauthorized actions. The attack vector is network-based (AV:N), requiring no user interaction (UI:N), and the scope remains unchanged (S:U). The vulnerability impacts confidentiality and integrity to a high degree (C:H/I:H), but does not affect availability (A:N). This means attackers can potentially access or modify sensitive email verification data or system configurations without proper authorization. Although no known exploits are currently reported in the wild, the vulnerability's characteristics make it a significant risk, especially in environments where the software is exposed to untrusted networks or users. The lack of patches at the time of publication necessitates immediate mitigation efforts by affected organizations. The vulnerability was reserved and published in late October 2025, indicating recent discovery and disclosure. The absence of detailed CWE identifiers limits precise classification, but the core issue is an access control flaw leading to privilege escalation or unauthorized data access within the product.

For European organizations, the impact of CVE-2025-62938 can be substantial, particularly for those relying on Reoon Email Verifier for validating email addresses in customer onboarding, marketing, or security workflows. Unauthorized access could lead to exposure of sensitive email data, manipulation of verification results, or unauthorized configuration changes, potentially undermining trust in email communications and leading to data breaches. This can result in regulatory non-compliance under GDPR due to improper handling of personal data. Additionally, attackers could leverage this vulnerability as a foothold to pivot within internal networks, increasing the risk of broader compromise. The lack of availability impact reduces immediate operational disruption but does not lessen the risk to data confidentiality and integrity. Organizations in sectors with high email verification usage, such as finance, telecommunications, and e-commerce, are particularly vulnerable. The vulnerability's network accessibility and low privilege requirement increase the likelihood of exploitation if the software is exposed to external or semi-trusted networks.

1. Immediately audit and restrict access controls on Reoon Email Verifier instances to ensure only fully trusted and authenticated administrators have access. 2. Implement network segmentation and firewall rules to limit access to the email verifier service from untrusted networks or users. 3. Monitor logs for unusual access patterns or unauthorized attempts to interact with the email verifier. 4. Engage with Reoon Technology to obtain and apply patches or updates as soon as they become available. 5. If patching is delayed, consider temporarily disabling or isolating the vulnerable service to prevent exploitation. 6. Employ multi-factor authentication for all administrative access to reduce risk from compromised credentials. 7. Conduct regular security assessments and penetration tests focusing on access control mechanisms within the email verification infrastructure. 8. Educate staff about the risks of unauthorized access and enforce strict credential management policies. 9. Review and update incident response plans to include scenarios involving unauthorized access to email verification systems.