CVE-2021-3396

mediumpriority · track · 36OT risk · elevatedEPSS 0.024 · 84 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.37% (84th) EPSS

CVSS 6.5 · medium

Is it mine?

12 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-28

OpenNMS Meridian 2016, 2017, 2018 before 2018.1.25, 2019 before 2019.1.16, and 2020 before 2020.1.5, Horizon 1.2 through 27.0.4, and Newts <1.5.3 has Incorrect Access Control, which allows local and remote code execution using JEXL expressions.

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⚠ sources disagree · medium–high · 6.5–8.8

v2.06.5mediumAV:N/AC:L/Au:S/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8 · impact 6.4

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

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

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

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-863US

affected products (12)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
opennms horizon16.0.0 → 27.0.3nvdUScpe:2.3:a:opennms:horizon:*:*:*:*:*:*:*:*
opennms meridian2016.1.0 → 2016.1.24nvdUScpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*
opennms meridian2017.1.0 → 2017.1.26nvdUScpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*
opennms meridian2018.1.0 → 2018.1.25nvdUScpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*
opennms meridian2019.1.0 → 2019.1.16nvdUScpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*
opennms meridian2020.1.0 → 2020.1.5nvdUScpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*
opennms newts< 1.5.3nvdUScpe:2.3:a:opennms:newts:*:*:*:*:*:*:*:*
Maven org.opennms.features:org.opennms.features.measurements16.0.0 → 27.0.4osvUSpkg:maven/org.opennms.features/org.opennms.features.measurements
Maven org.opennms:opennms16.0.0 → 27.0.4osvUSpkg:maven/org.opennms/opennms
Maven org.opennms:opennms-provision16.0.0 → 27.0.4osvUSpkg:maven/org.opennms/opennms-provision
Maven org.opennms:opennms-util16.0.0 → 27.0.4osvUSpkg:maven/org.opennms/opennms-util

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-c3mp-9vx3-2rvvOpenNMS Horizon RCE via JEXL2 expression2022-05-24ghsa · osvUS
OpenNMS Meridian 2016, 2017, 2018 before 2018.1.25, 2019 before 2019.1.16, and 2020 before 2020.1.5, Horizon 1.2 through 27.0.4, and Newts <1.5.3 has Incorrect Access Control, which allows local and remote code execution using JEXL expressions.

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 2021-02-17modified 2026-06-17

references (7)

External citations — patches, advisories, analysis.

scry

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