How severe is CVE-2024-40723?

CVE-2024-40723 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2024-40723 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-40723?

CVE-2024-40723 affects Changingtec Hwatai Servisign. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-40723?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-40723 have an EU (EUVD) identifier?

Yes. CVE-2024-40723 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-38588.

When was CVE-2024-40723 published?

CVE-2024-40723 was published on 2024-08-02 and last updated on 2026-06-17.

CVE-2024-40723

CVE-2024-40723 is a medium-severity vulnerability in Changingtec Hwatai Servisign with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-38588
Weakness: CWE-787
Affected product: Changingtec Hwatai Servisign
Published: 2024-08-02
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2024-40723?: 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.
How severe is CVE-2024-40723?: CVE-2024-40723 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2024-40723 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-40723?: CVE-2024-40723 affects Changingtec Hwatai Servisign. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-40723?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-40723 have an EU (EUVD) identifier?: Yes. CVE-2024-40723 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-38588.
When was CVE-2024-40723 published?: CVE-2024-40723 was published on 2024-08-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:changingtec:hwatai_servisign:*:*:*:*:*:windows:*:*

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