Is CVE-2024-2421 in the CISA KEV catalog?

No. CVE-2024-2421 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-2421?

CVE-2024-2421 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2024-2421?

CVE-2024-2421 has an EPSS score of 0.52% (41th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-2421?

Upgrade lenels2 netbox to 5.6.2 or later.

CVE & CISA-KEV Catalog

CVE-2024-2421

CRITICAL

9.8

CVSS v3

NVD

Description

LenelS2 NetBox access control and event monitoring system was discovered to contain an unauthenticated RCE in versions prior to and including 5.6.1, which allows an attacker to execute malicious commands with elevated permissions.

CWE-78OS Command Injection

How to fix

Remediation Available

lenels2 netboxNVD

Affected:< 5.6.2Fixed in:5.6.2CVE-2024-2421derived 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 VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.52%probability of exploitation in 30 days

41stpercentile

Moderate risk: more likely to be exploited than 41% of all known CVEs.

References

Vendor Advisory1

cisa.gov

Other references1

corporate.carrier.com

Related Vulnerabilities

Other CWE-78 (OS Command Injection) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-1498	Critical	9.8	100%	KEV	Fix
CVE-2014-6271	Critical	9.8	100%	KEV	Fix
CVE-2019-16920	Critical	9.8	100%	KEV	-
CVE-2022-44877	Critical	9.8	100%	KEV	Fix
CVE-2020-8515	Critical	9.8	100%	KEV	-
CVE-2020-9054	Critical	9.8	100%	KEV	Fix

Embed a live status badge for CVE-2024-2421

Markdown

[![CVE-2024-2421](https://tridentstack.com/cve/badge/CVE-2024-2421.svg)](https://tridentstack.com/cve/CVE-2024-2421)

HTML

<a href="https://tridentstack.com/cve/CVE-2024-2421"><img src="https://tridentstack.com/cve/badge/CVE-2024-2421.svg" alt="CVE-2024-2421"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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 2026-02-02.