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CVE-2026-2749: Centreon Open Tickets Path Traversal (CVSS 9.9)

CVE-2026-2749 is a critical severity path traversal in Centreon Open Tickets with a CVSS score of 9.9. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Last updated: Jun 17, 2026

Quick answer

Direct answer

CVE-2026-2749 is a critical severity path traversal in Centreon Open Tickets with a CVSS score of 9.9. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Risk scores

CVSS base score
9.9CRITICAL
EPSS probability
0.63%
Higher than 49 percent of all CVEs
CISA KEV
Not listed
CVSS metricWhat it means
Attack vector (AV:N)Network: reachable remotely
Attack complexity (AC:L)Low complexity
Privileges required (PR:L)Low privileges required
User interaction (UI:N)No user interaction
Scope (S:C)Scope changed: impact spreads beyond the component
Confidentiality (C:H)High confidentiality impact
Integrity (I:H)High integrity impact
Availability (A:H)High availability impact

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

About Centreon Open Tickets

CVE-2026-2749 affects Centreon Open Tickets, a product from Centreon. Before acting, confirm where Centreon Open Tickets runs in your estate, who owns it and whether it is reachable from the internet, because exposure decides real risk more than the score alone.

What the flaw is

In plain terms: Vulnerability in Centreon Centreon Open Tickets on Central Server on Linux (Centroen Open Ticket modules).This issue affects Centreon Open Tickets on Central Server: from all before 25.10.3, 24.10.8, 24.04.7.

The weakness class is Path Traversal. An attacker can reach files outside the intended folder by tampering with a file path.

Based on its CVSS vector, the flaw can be reached over the network, needs some level of access, and needs no user interaction. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Affected versions and timeline

FieldDetail
ProductCentreon Open Tickets
Affected versionsOpen Tickets before 24.04.7; Open Tickets from 24.10.0 before 24.10.8; Open Tickets from 25.10.0 before 25.10.3
PublishedFeb 27, 2026
Last modifiedJun 17, 2026
Added to CISA KEVNot listed
Assigning CNAbd4443e6-1eef-43f3-9886-25fc9ceeaae7

How to detect it

  • Inventory every instance of Centreon Open Tickets and record the running version against the affected range above.
  • Check external attack surface scans for internet facing instances of the component.
  • Review logs on affected systems for unusual requests, errors or new processes around the vulnerable function.
  • Confirm with an authenticated vulnerability scan once your scanner has a check for this CVE.

How to fix it

  • Apply the fixed version of Centreon Open Tickets named in the vendor advisory.
  • If patching must wait, restrict network access to the affected service and put it behind authentication or a web application firewall rule.
  • Rescan after the change to prove the exposure is gone, then close the ticket.

CTEM action plan

CTEM stageWhat to do for this CVE
ScopeAdd every business service that depends on Centreon Open Tickets to the current CTEM cycle.
DiscoverFind all instances, including shadow and cloud deployments, and record versions and exposure.
PrioritizeRank using EPSS and CVSS together with asset exposure and business impact.
ValidateConfirm the flaw is reachable and exploitable in your environment and that compensating controls work.
MobilizeAssign the fix to the asset owner with a due date matched to the priority, then verify closure.

CWE References

Technical References

Frequently asked questions

CVE-2026-2749 is a critical severity path traversal in Centreon Open Tickets with a CVSS score of 9.9. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

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