What is CVE-2024-2420?

CVE-2024-2420 is a critical-severity vulnerability in Honeywell Lenels2 Netbox, classified under Use of Hard-coded Password. CVSS score: 9.8/10. Published 2024-05-30.

How severe is CVE-2024-2420?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Honeywell Lenels2 Netbox

CVE-2024-2420

LenelS2 NetBox access control and event monitoring system was discovered to contain Hardcoded Credentials in versions prior to and including 5.6.1 which allows an attacker to bypass authentication requirements.

Published 2024-05-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (40.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 40.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Honeywell Lenels2 Netbox
Lenels2 Netbox — versions All

Weakness classification (CWE)

CWE-259 — Use of Hard-coded Password

References

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

Frequently asked questions

What is CVE-2024-2420?: CVE-2024-2420 is a critical-severity vulnerability in Honeywell Lenels2 Netbox, classified under Use of Hard-coded Password. CVSS score: 9.8/10. Published 2024-05-30.
How severe is CVE-2024-2420?: Critical severity. CVSS v3 base score is 9.8 out of 10.