CVE-2025-60106 is a Missing Authorization vulnerability (CWE-862) identified in Roxnor's EmailKit product, affecting versions up to 1.6.0. This vulnerability arises from improperly configured access control mechanisms within the EmailKit software, allowing users with certain privileges to perform actions or access resources without proper authorization checks. Specifically, the flaw is due to missing or insufficient authorization validation, which can lead to unauthorized operations that impact system availability. According to the CVSS 3.1 vector, the vulnerability has a base score of 4.9 (medium severity), with the following characteristics: it can be exploited remotely over the network (AV:N), requires low attack complexity (AC:L), but demands high privileges (PR:H) and no user interaction (UI:N). The scope remains unchanged (S:U), and the impact affects availability only (A:H), with no confidentiality or integrity impact. No known exploits are currently reported in the wild, and no patches have been linked yet. The vulnerability was published on September 26, 2025, and assigned by Patchstack. The missing authorization could allow privileged users to bypass intended access restrictions, potentially leading to denial of service or disruption of email services provided by EmailKit. Since EmailKit is an email-related software component, such disruptions could affect business communications and operational continuity.

For European organizations, this vulnerability poses a risk primarily to the availability of email services managed via Roxnor EmailKit. Disruption or denial of service could impact internal and external communications, critical for business operations, customer interactions, and regulatory compliance (e.g., GDPR requirements for timely communication and data handling). Organizations relying on EmailKit for email infrastructure could face operational downtime, leading to productivity loss and potential reputational damage. While confidentiality and integrity are not directly impacted, the availability impact could cascade into broader operational challenges, especially for sectors heavily dependent on email communications such as finance, healthcare, and government. The requirement for high privileges to exploit the vulnerability somewhat limits the risk to insiders or compromised privileged accounts, but insider threats or attackers who have escalated privileges could leverage this flaw to disrupt services.

Given the absence of an official patch at this time, European organizations using Roxnor EmailKit should implement the following mitigations: 1) Restrict and monitor privileged accounts rigorously to prevent unauthorized access or misuse, employing the principle of least privilege. 2) Implement network segmentation and firewall rules to limit access to EmailKit management interfaces only to trusted administrative hosts. 3) Conduct thorough access control reviews and audits to detect any misconfigurations or excessive permissions within EmailKit. 4) Deploy monitoring and alerting for unusual activity related to EmailKit, including attempts to access or modify email services by privileged users. 5) Prepare incident response plans specifically addressing potential availability disruptions in email services. 6) Engage with Roxnor for timely updates and patches, and plan for rapid deployment once available. 7) Consider temporary compensating controls such as multi-factor authentication for privileged accounts and enhanced logging to detect exploitation attempts.