CVE-2026-2750

Critical

Published: 27 February 2026

Published

27 February 2026

Modified

23 March 2026

KEV Added

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Patch

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CVSS Score 9.1 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

EPSS Score 0.0009 25.0th percentile

Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-2750 is a critical-severity Improper Input Validation (CWE-20) vulnerability in Centreon Web. Its CVSS base score is 9.1 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 25.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploitation for Privilege Escalation (T1068) and 1 other technique. What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SI-10 Information Input Validation good match

prevent

SI-10 directly requires implementation of input validation mechanisms to prevent exploitation of improper input validation vulnerabilities like CWE-20 in Centreon Open Tickets.

SI-2 Flaw Remediation good match

prevent

SI-2 mandates timely flaw remediation, including applying Centreon's patches for versions before 25.10 to eliminate this specific critical vulnerability.

AC-6 Least Privilege partial match

prevent

AC-6 enforces least privilege to restrict high-privilege (PR:H) access required to exploit this vulnerability, reducing the attack surface.

MITRE ATT&CK Enterprise TechniquesAI

T1068 Exploitation for Privilege Escalation Privilege Escalation

Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.

attack.mitre.org →

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

Why these techniques?

Improper input validation (CWE-20) in Centreon Web (public-facing Linux server component) with PR:H + S:C + full CIA impact directly enables remote exploitation of the application (T1190) and subsequent privilege escalation to broader system scope (T1068).

Confidence: MEDIUM · MITRE ATT&CK Enterprise v18.1

NVD Description

Improper Input Validation vulnerability in Centreon Centreon Open Tickets on Central Server on Linux (Centreon Open Tickets modules).This issue affects Centreon Open Tickets on Central Server: from all before 25.10; 24.10;24.04.

Deeper analysisAI

CVE-2026-2750 is an Improper Input Validation vulnerability (CWE-20) in the Centreon Open Tickets modules on Centreon Central Server running on Linux. It affects all versions before 25.10, including 24.10 and 24.04. The vulnerability has a CVSS v3.1 base score of 9.1 (AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H), classifying it as Critical.

The vulnerability can be exploited over the network by an attacker with high privileges (PR:H). It requires low complexity and no user interaction, but enables scope expansion (S:C) to achieve high impacts on confidentiality, integrity, and availability across affected components.

Centreon has issued a security bulletin for this issue, available at https://thewatch.centreon.com/latest-security-bulletins-64/cve-2026-2750-centreon-web-critical-severity-5503, which addresses the vulnerability in Centreon Web with critical severity.