CVE-2024-40723

Name: CVE-2024-40723
Creator: NVD / NIST
Published: 2024-08-02T11:16:43.52+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.45%

Last modified Jun 17, 2026

CVE-2024-40723 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. The specific API in HWATAIServiSign Windows Version from CHANGING Information Technology does not properly validate the length of server-side inputs. When a user visits a spoofed website, unauthenticated remote attackers can cause a stack-based buffer overflow in the HWATAIServiSign, temporarily disrupting its service.. EPSS estimates a 0.45% chance of exploitation in the next 30 days.

Description

The specific API in HWATAIServiSign Windows Version from CHANGING Information Technology does not properly validate the length of server-side inputs. When a user visits a spoofed website, unauthenticated remote attackers can cause a stack-based buffer overflow in the HWATAIServiSign, temporarily disrupting its service.

Metrics

CVSS 3.1

4.3/10

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

EPSS Probability

0.45%

36.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Changingtec	Hwatai Servisign	< 1.0.24.0219

References

https://www.twcert.org.tw/en/cp-139-7974-0562f-2.htmlThird Party Advisory
https://www.twcert.org.tw/tw/cp-132-7968-ce2ef-1.htmlThird Party Advisory

Timeline

Published: Aug 2, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-40723?

How severe is CVE-2024-40723?

CVE-2024-40723 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.45% probability of exploitation in the next 30 days.

How do I fix CVE-2024-40723?

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-2024-40723?

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

Scan your code now

Source: NVD / NIST