CVE-2023-0872

highpriority · track · 43EPSS 0.033 · 89 %ileexploit · weaponizedEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · weaponized

Likely / severe?

3.31% (89th) EPSS

CVSS 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

The Horizon REST API includes a users endpoint in OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple platforms is vulnerable to elevation of privilege. 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. OpenNMS thanks Erik Wynter for reporting this issue.

cvss

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

8.2

010

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

v3.18highCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.1 · impact 5.9

v3.18.2highCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:Lsecondary · ENISA EU

v3.18.2highCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:Lsecondary · security@opennms.comexploitability 2.3 · impact 5.3

v3.18.2highCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:Lsecondary · OSV

v3.17.8highCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Fsecondary · CVSS-BT (t0sche)

ssvc

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

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-269USCWE-269US

exploits (1)

Public proof-of-concept and weaponised exploit code.

exploit/linux/http/opennms_horizon_authenticated_rceOpenNMS Horizon Authenticated RCEweaponized · metasploit

affected products (11)

Products and version ranges known to be affected.

The OpenNMS Group Horizon31.0.8 → 32.0.2enisa_euvdEU
The OpenNMS Group Meridian≤ 2020.0.0 ≤2020.1.37enisa_euvdEU
The OpenNMS Group Meridian≤ 2023.0.0 ≤2023.1.5enisa_euvdEU
The OpenNMS Group Meridian≤ 2022.0.0 ≤2022.1.18enisa_euvdEU
The OpenNMS Group Meridian≤ 2021.0.0 ≤2021.1.29enisa_euvdEU
opennms horizon31.0.8 → 32.0.2nvdUScpe:2.3:a:opennms:horizon:*:*:*:*:*:*:*:*
opennms meridian2020.0.0 → 2020.1.37nvdUScpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*
opennms meridian2021.0.0 → 2021.1.29nvdUScpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*
opennms meridian2022.0.0 → 2022.1.18nvdUScpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*
opennms meridian2023.0.0 → 2023.1.5nvdUScpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*
Maven org.opennms:opennms-webapp-rest31.0.8 → 32.0.2osvUSpkg:maven/org.opennms/opennms-webapp-rest

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-w5gq-xrrp-3fxfOpenNMS privilege elevation vulnerability2023-08-14ghsa · osvUS
The Horizon REST API includes a users endpoint in OpenNMS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple platforms is vulnerable to elevation of privilege. 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. OpenNMS thanks Erik Wynter for reporting this issue.

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 2023-08-14modified 2026-06-17

references (8)

External citations — patches, advisories, analysis.

scry

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