Is CVE-2023-40315 in the CISA KEV catalog?

No. CVE-2023-40315 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-40315?

CVE-2023-40315 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2023-40315?

CVE-2023-40315 has an EPSS score of 2.54% (83th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-40315?

Upgrade horizon to 32.0.2 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2023-40315

MEDIUMEPSS 83th pctl

5.3

CVSS v3

NVD

Description

In OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 and related Meridian versions, any user that has the ROLE_FILESYSTEM_EDITOR can easily escalate their privileges to ROLE_ADMIN or any other role. The solution is to upgrade to Meridian 2023.1.5 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.

CWE-863Incorrect Authorization

How to fix

Remediation Available

horizonNVD

Affected:>= 31.0.8, < 32.0.2Fixed in:32.0.2CVE-2023-40315derived from NVD

meridianNVD

Affected:>= 2023.0.0, < 2023.1.5Fixed in:2023.1.5CVE-2023-40315derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorAdjacent

Attack ComplexityHigh

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityHigh

AvailabilityLow

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

Exploit Intelligence

2.54%probability of exploitation in 30 days

83rdpercentile

Elevated risk: more likely to be exploited than 83% of all known CVEs.

References

Patch1

github.com

Release Notes1

docs.opennms.com

Related Vulnerabilities

Other CWE-863 (Incorrect Authorization) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-22518	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-38035	Critical	9.8	100%	KEV + Ransom	-
CVE-2022-46169	Critical	9.8	100%	KEV	Fix
CVE-2025-29927	Critical	9.1	100%	-	Fix
CVE-2024-38856	Critical	9.8	99%	KEV	Fix
CVE-2020-36289	Medium	5.3	99%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.