Is CVE-2023-40612 actively exploited?

No active exploitation of CVE-2023-40612 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-40612 be exploited remotely?

Partially. CVE-2023-40612 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2023-40612?

CVE-2023-40612 has a CVSS score of 8.0 (HIGH).

HOME VULNERABILITIESCVE-2023-40612

HIGH

CVE-2023-40612

CWE-91Published: August 23, 2023· Updated: Jun 17, 2026

8.0

CVSS v3.1

Official Description

In OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2, the file editor which is accessible to any user with ROLE_FILESYSTEM_EDITOR privileges is vulnerable to XXE injection attacks. The solution is to upgrade to Meridian 2023.1.5 or Horizon 32.0.2 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet. OpenNMS thanks Erik Wynter for reporting this issue.

NVD Source

Technical Analysis

CVE-2023-40612 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.0.