CVE-2021-3396
OpenNMS Horizon RCE via JEXL2 expression
8.8
HIGH
CVSS 3.1
EPSS 2.4%
Description
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.
How to fix CVE-2021-3396
To remediate CVE-2021-3396, upgrade the affected package to a fixed version below.
- —upgrade to 27.0.4 or later
- —upgrade to 27.0.4 or later
- —upgrade to 27.0.4 or later
- —upgrade to 27.0.4 or later
Is CVE-2021-3396 being exploited?
Low — EPSS is 2.4%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- >= 16.0.0, < 27.0.4
- >= 16.0.0, < 27.0.4
- >= 16.0.0, < 27.0.4
- >= 16.0.0, < 27.0.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |