CVE-2023-40313

highpriority · track · 35EPSS 0.008 · 56 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.78% (56th) EPSS

CVSS 8.8 · high

Is it mine?

11 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-28

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.

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.8highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.17.1highCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Lsecondary · ENISA EU

v3.17.1highCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Lsecondary · security@opennms.comexploitability 1.6 · impact 5.5

v3.17.1highCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Lsecondary · OSV

v3.18.1highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-94USCWE-94US

affected products (11)

Products and version ranges known to be affected.

The OpenNMS Group Horizon29.0.4 → 32.0.2enisa_euvdEU
The OpenNMS Group Meridian≤ 2020.0.0 ≤2020.1.37enisa_euvdEU
The OpenNMS Group Meridian≤ 2021.0.0 ≤2021.1.29enisa_euvdEU
The OpenNMS Group Meridian≤ 2022.0.0 ≤2022.1.18enisa_euvdEU
The OpenNMS Group Meridian≤ 2023.0.0 ≤2023.1.5enisa_euvdEU
opennms horizon< 32.0.2nvdUScpe:2.3:a:opennms:horizon:*:*:*:*:*:*:*:*
opennms meridian< 2020.1.38nvdUScpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*
opennms meridian2021.1.0 → 2021.1.30nvdUScpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*
opennms meridian2022.1.0 → 2022.1.19nvdUScpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*
opennms meridian2023.1.0 → 2023.1.6nvdUScpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*
Maven org.opennms:opennms-base-assembly< 32.0.2osvUSpkg:maven/org.opennms/opennms-base-assembly

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-5m5f-qg8r-p9qfOpenNMS vulnerable to remote code execution2023-08-17ghsa · osvUS
A BeanShell interpreter in remote server mode runs in OpenNMS 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.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2023-08-17modified 2026-06-17

references (8)

External citations — patches, advisories, analysis.

scry

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