EUVD-2026-9028

Comprehensive Technical Analysis of EUVD-2026-9028

1. Vulnerability Assessment and Severity Evaluation

The vulnerability identified as EUVD-2026-9028 affects Centreon Open Tickets on Central Server, specifically in the Centreon Open Ticket modules. The CVSS (Common Vulnerability Scoring System) base score of 9.9 indicates a critical severity level. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H breaks down as follows:

• AV:N - Attack Vector: Network, meaning the vulnerability is exploitable remotely over the network.
• AC:L - Attack Complexity: Low, indicating that the attack is relatively easy to execute.
• PR:L - Privileges Required: Low, suggesting that the attacker needs minimal privileges to exploit the vulnerability.
• UI:N - User Interaction: None, meaning no user interaction is required for the attack to succeed.
• S:C - Scope: Changed, indicating that the vulnerability affects components beyond the security scope managed by the security authority.
• C:H - Confidentiality: High, meaning the vulnerability can result in a complete loss of confidentiality.
• I:H - Integrity: High, indicating a complete loss of integrity.
• A:H - Availability: High, suggesting a complete loss of availability.

Given these metrics, the vulnerability poses a significant risk to the confidentiality, integrity, and availability of the affected systems.

2. Potential Attack Vectors and Exploitation Methods

Potential attack vectors include:

• Remote Exploitation: Given the network attack vector (AV:N), attackers can exploit this vulnerability over the network without needing physical access to the system.
• Low Privilege Requirement: The low privilege requirement (PR:L) suggests that even users with minimal access can exploit this vulnerability.
• No User Interaction: The lack of user interaction (UI:N) means that the attack can be automated and does not require any action from the user.

Exploitation methods may include:

• Network-Based Attacks: Attackers can send malicious packets or requests to the Centreon Open Tickets server to exploit the vulnerability.
• Automated Scripts: Given the low complexity, attackers can use automated scripts to scan for vulnerable systems and exploit them en masse.

3. Affected Systems and Software Versions

The vulnerability affects the following versions of Centreon Open Tickets on Central Server:

• All versions before 25.10.3
• All versions before 24.10.8
• All versions before 24.04.7

Organizations running any of these versions are at risk and should prioritize updating to a patched version.

4. Recommended Mitigation Strategies

To mitigate the risk associated with this vulnerability, organizations should:

• Update Software: Immediately update to the latest patched versions of Centreon Open Tickets on Central Server (25.10.3, 24.10.8, or 24.04.7).
• Network Segmentation: Implement network segmentation to limit the exposure of critical systems to potential attackers.
• Access Controls: Enforce strict access controls to ensure that only authorized users have access to the Centreon Open Tickets server.
• Monitoring and Logging: Implement robust monitoring and logging to detect any suspicious activity that may indicate an attempted exploitation.
• Intrusion Detection Systems (IDS): Deploy IDS to identify and respond to potential attacks in real-time.

5. Impact on European Cybersecurity Landscape

The critical nature of this vulnerability poses a significant risk to organizations across Europe that rely on Centreon for their IT monitoring and management. Given the widespread use of Centreon in various sectors, including healthcare, finance, and government, the potential impact could be far-reaching. Organizations must act swiftly to mitigate the risk and ensure the security of their systems.

6. Technical Details for Security Professionals

For security professionals, the following technical details are pertinent:

• Vulnerability Identification: The vulnerability is identified by CVE-2026-2749 and EUVD-2026-9028.
• References: Additional information can be found at:
  • Centreon Security Bulletin
  • NVD Detail
• Assigner: The vulnerability was assigned by Centreon.
• EPSS: Not available at the time of publication.
• ENISA ID: No specific product IDs are listed, but the vendor ID for Centreon is provided.

Security professionals should prioritize patching affected systems and ensure that their incident response plans are updated to address this critical vulnerability. Regular security audits and vulnerability assessments should be conducted to identify and mitigate similar risks in the future.