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CVE-2023-40315

33
FAUCET Score

CVE-2023-40315 is a privilege escalation vulnerability affecting OpenNMS Horizon versions 31.0.8 and earlier, and related Meridian versions. Any user with the ROLE_FILESYSTEM_EDITOR role can easily escalate their privileges to ROLE_ADMIN or other roles. With a CVSS score of 8.0 (HIGH), this vulnerability has a network attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While not actively exploited in the wild (KEV), a Metasploit module exists for authenticated Remote Code Execution, indicating readily available exploit code. Despite this, there is currently no community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 31.0.8, < 32.0.2CPE matchmatch criteria
cpe:2.3:a:opennms:horizon:*:*:*:*:*:*:*:*
>= 2023.0.0, < 2023.1.5CPE matchmatch criteria
cpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:L/I:H/A:L

Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
LOW
Exploitability Score
0.5
Impact Score
4.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.54%
Probability of exploitation in next 30 days
EPSS Percentile
83.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Metasploit: OpenNMS Horizon Authenticated RCE · Jul 1, 2023
This CVE's current EPSS score of 0.0254 is in the 88th percentile among its peer group of 552 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
mavenpatch availablevia ghsa
Product: org.opennms:opennms-webapp-restFixed in: 32.0.2

Vendor Advisories (1)

mavenGHSA-hf5p-f83x-5q2gmedium

OpenNMS privilege escalation vulnerability

Aug 17, 2023

References

docs.opennms.com / meridian/2023/releasenotes/changelog.html
Release Notes
github.com / OpenNMS/opennms/pull/6250
Patch