Is CVE-2023-40313 actively exploited?

No active exploitation of CVE-2023-40313 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-40313 be exploited remotely?

Partially. CVE-2023-40313 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2023-40313?

CVE-2023-40313 has a CVSS score of 8.8 (HIGH).

HOME VULNERABILITIESCVE-2023-40313

HIGH

CVE-2023-40313

NVD-CWE-noinfoPublished: August 17, 2023· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

A BeanShell interpreter in remote server mode runs in OpenMNS Horizon versions earlier than 32.0.2 and in related Meridian versions which could allow arbitrary remote Java code execution. The solution is to upgrade to Meridian 2023.1.6, 2022.1.19, 2021.1.30, 2020.1.38 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.

NVD Source

Technical Analysis

CVE-2023-40313 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

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 8.8.