CVE-2026-2750 is an Improper Input Validation vulnerability classified under CWE-20, found in the Centreon Open Tickets module on the Central Server running on Linux. Centreon is a widely used IT infrastructure monitoring and ticketing solution. The vulnerability affects all versions prior to 25.10, 24.10, and 24.04, allowing an attacker with high privileges to send crafted input that the system fails to properly validate. This improper validation can lead to severe consequences including unauthorized data access, modification, or deletion, and potentially full system compromise. The vulnerability is remotely exploitable over the network without requiring user interaction, but it does require the attacker to have high-level privileges, which could be obtained through other means or insider threat scenarios. The CVSS v3.1 score of 9.1 reflects the critical impact on confidentiality, integrity, and availability, as well as the ease of exploitation given the low attack complexity and no user interaction needed. Although no active exploits are currently known, the vulnerability's presence in a critical IT management tool makes it a high-value target for attackers aiming to disrupt enterprise operations or steal sensitive information. The lack of available patches at the time of publication necessitates immediate risk mitigation.

The impact of CVE-2026-2750 is severe for organizations relying on Centreon Open Tickets for IT service management and incident tracking. Exploitation could lead to unauthorized access to sensitive ticketing data, manipulation or deletion of tickets, and disruption of IT support workflows, which may cascade into broader operational outages. The compromise of confidentiality could expose sensitive internal communications and incident details. Integrity breaches could allow attackers to alter ticket data, masking malicious activity or causing mismanagement of incidents. Availability impacts could result in denial of service for IT support teams, delaying response to critical infrastructure issues. Given Centreon's role in monitoring and managing IT environments, exploitation could facilitate lateral movement within networks, enabling attackers to escalate privileges or deploy further attacks. This threat is particularly critical for sectors with high dependency on IT service continuity such as finance, healthcare, telecommunications, and government agencies.

To mitigate CVE-2026-2750, organizations should: 1) Monitor Centreon vendor communications closely and apply security patches immediately once released. 2) Restrict access to Centreon Open Tickets modules to trusted administrators only, enforcing the principle of least privilege to reduce the risk of high-privilege exploitation. 3) Implement network segmentation and firewall rules to limit exposure of Centreon servers to untrusted networks. 4) Conduct thorough input validation and sanitization on any custom integrations or scripts interfacing with Centreon to prevent injection of malicious data. 5) Enable detailed logging and continuous monitoring of Centreon server activities to detect anomalous behavior indicative of exploitation attempts. 6) Perform regular security audits and penetration testing focused on Centreon infrastructure to identify and remediate weaknesses proactively. 7) Educate IT staff about the risks of privilege escalation and the importance of safeguarding administrative credentials. These steps, combined with timely patching, will reduce the attack surface and limit potential damage.