How severe is CVE-2020-11886?

CVE-2020-11886 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2020-11886 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-11886?

CVE-2020-11886 primarily affects Opennms Horizon. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-11886?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-11886 published?

CVE-2020-11886 was published on 2020-04-17 and last updated on 2026-06-17.

CVE-2020-11886

CVE-2020-11886 is a high-severity vulnerability in Opennms Horizon with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-89.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 5.5
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Opennms Horizon
Published: 2020-04-17
Last modified: 2026-06-17

Description

OpenNMS Horizon and Meridian allows HQL Injection in element/nodeList.htm (aka the NodeListController) via snmpParm or snmpParmValue to addCriteriaForSnmpParm. This affects Horizon before 25.2.1, Meridian 2019 before 2019.1.4, Meridian 2018 before 2018.1.16, and Meridian 2017 before 2017.1.21.

Frequently asked questions

What is CVE-2020-11886?: OpenNMS Horizon and Meridian allows HQL Injection in element/nodeList.htm (aka the NodeListController) via snmpParm or snmpParmValue to addCriteriaForSnmpParm. This affects Horizon before 25.2.1, Meridian 2019 before 2019.1.4, Meridian 2018 before 2018.1.16, and Meridian 2017 before 2017.1.21.
How severe is CVE-2020-11886?: CVE-2020-11886 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2020-11886 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-11886?: CVE-2020-11886 primarily affects Opennms Horizon. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-11886?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-11886 published?: CVE-2020-11886 was published on 2020-04-17 and last updated on 2026-06-17.

References

https://issues.opennms.org/browse/NMS-12572

Affected products (2)

cpe:2.3:a:opennms:horizon:*:*:*:*:*:*:*:*
cpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*

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