CVE-2024-2421

Name: CVE-2024-2421
Creator: NVD / NIST
Published: 2024-05-30T18:15:09.23+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.3/10EPSS 0.52%

Last modified Jun 17, 2026

CVE-2024-2421 is a critical-severity vulnerability rated 9.3/10 on the CVSS scale. 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.. EPSS estimates a 0.52% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

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

CVSS 4.0

9.3/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.52%

40.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Honeywell	Lenels2 Netbox	< 5.6.2

References

https://www.cisa.gov/news-events/ics-advisories/icsa-24-151-01US Government Resource, Vendor Advisory
https://www.corporate.carrier.com/Images/CARR-PSA-2024-01-NetBox_tcm558-227956.pdfBroken Link
https://www.cisa.gov/news-events/ics-advisories/icsa-24-151-01US Government Resource, Vendor Advisory
https://www.corporate.carrier.com/Images/CARR-PSA-2024-01-NetBox_tcm558-227956.pdfBroken Link

Timeline

Published: May 30, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-2421?

How severe is CVE-2024-2421?

CVE-2024-2421 has a CVSS score of 9.3/10 (CRITICAL severity). The EPSS model estimates a 0.52% probability of exploitation in the next 30 days.

How do I fix CVE-2024-2421?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-2421?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST