CVE-2025-68164 is an information disclosure vulnerability classified under CWE-203 (Information Exposure Through Discrepancy) found in JetBrains TeamCity, a continuous integration and build management system widely used in software development environments. The vulnerability exists in versions prior to 2025.11 and enables port enumeration via the Perforce connection test feature. Specifically, an authenticated user with high privileges can leverage this feature to probe network ports, potentially revealing information about network configurations or services running on the TeamCity server or connected infrastructure. The vulnerability does not allow modification of data or disruption of service, limiting its impact to confidentiality. The CVSS 3.1 base score is 2.7, indicating low severity, with attack vector being network, low attack complexity, requiring privileges, and no user interaction. No known exploits have been reported in the wild, and no official patches have been released at the time of publication. This vulnerability could be used by insiders or attackers who have already gained elevated access to gather intelligence for further attacks or lateral movement within a network.

For European organizations, the primary impact of CVE-2025-68164 is limited to confidentiality loss through information disclosure. While the vulnerability does not directly compromise system integrity or availability, the ability to enumerate ports can aid attackers in mapping internal network structures and identifying additional attack vectors. Organizations using JetBrains TeamCity integrated with Perforce version control systems are particularly at risk. This could be relevant for software development firms, IT service providers, and enterprises with in-house development teams. The impact is mitigated by the requirement for high privilege authentication, reducing the risk from external attackers but increasing concern about insider threats or compromised credentials. The vulnerability could facilitate more sophisticated attacks if combined with other vulnerabilities or social engineering tactics. Given the widespread use of TeamCity in Europe, especially in countries with strong software industries, the threat warrants attention despite its low severity rating.

To mitigate CVE-2025-68164, European organizations should implement the following specific measures: 1) Restrict access to TeamCity instances to only trusted, high-privilege users and enforce strict role-based access controls to minimize the number of users who can perform Perforce connection tests. 2) Monitor and audit usage of the Perforce connection test feature to detect unusual or unauthorized port scanning activities. 3) Network segmentation should be employed to limit the exposure of TeamCity servers and connected infrastructure, reducing the usefulness of port enumeration. 4) Employ strong authentication mechanisms, including multi-factor authentication, to reduce the risk of credential compromise. 5) Stay informed about JetBrains security advisories and apply patches promptly once they become available. 6) Consider disabling or restricting the Perforce connection test feature if it is not essential for operations. 7) Conduct regular security assessments and penetration tests focusing on internal threat vectors and privilege misuse scenarios.