CVE-2023-4418

Name: CVE-2023-4418
Creator: NVD / NIST
Published: 2023-08-24T19:15:42.89+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.69%

Last modified Jun 17, 2026

CVE-2023-4418 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A remote unprivileged attacker can sent multiple packages to the LMS5xx to disrupt its availability through a TCP SYN-based denial-of-service (DDoS) attack. By exploiting this vulnerability, an attacker can flood the targeted LMS5xx with a high volume of TCP SYN requests, overwhelming its resources and causing it to become unresponsive or unavailable for legitimate users.. EPSS estimates a 0.69% chance of exploitation in the next 30 days.

Description

A remote unprivileged attacker can sent multiple packages to the LMS5xx to disrupt its availability through a TCP SYN-based denial-of-service (DDoS) attack. By exploiting this vulnerability, an attacker can flood the targeted LMS5xx with a high volume of TCP SYN requests, overwhelming its resources and causing it to become unresponsive or unavailable for legitimate users.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.69%

47.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-400

Affected Software

Vendor	Product	Versions
Sick	Lms531 Firmware	All versions
Sick	Lms511 Firmware	All versions
Sick	Lms500 Firmware	All versions

References

https://sick.com/.well-known/csaf/white/2023/sca-2023-0007.jsonVendor Advisory
https://sick.com/.well-known/csaf/white/2023/sca-2023-0007.pdfVendor Advisory
https://sick.com/psirtVendor Advisory
https://sick.com/.well-known/csaf/white/2023/sca-2023-0007.jsonVendor Advisory
https://sick.com/.well-known/csaf/white/2023/sca-2023-0007.pdfVendor Advisory
https://sick.com/psirtVendor Advisory

Timeline

Published: Aug 24, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-4418?

How severe is CVE-2023-4418?

CVE-2023-4418 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.69% probability of exploitation in the next 30 days.

How do I fix CVE-2023-4418?

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-2023-4418?

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

Scan your code now

Source: NVD / NIST