How severe is CVE-2024-40722?

CVE-2024-40722 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-2024-40722 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-2024-40722?

CVE-2024-40722 affects Changingtec Tcb Servisign. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-40722?

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

Does CVE-2024-40722 have an EU (EUVD) identifier?

Yes. CVE-2024-40722 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-38587.

When was CVE-2024-40722 published?

CVE-2024-40722 was published on 2024-08-02 and last updated on 2026-06-17.

CVE-2024-40722

CVE-2024-40722 is a medium-severity vulnerability in Changingtec Tcb 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-2024-38587
Weakness: CWE-787
Affected product: Changingtec Tcb Servisign
Published: 2024-08-02
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2024-40722?: The specific API in TCBServiSign Windows Version from CHANGING Information Technology does does not properly validate the length of server-side input. When a user visits a spoofed website, unauthenticated remote attackers can cause a stack-based buffer overflow in the TCBServiSign, temporarily disrupting its service.
How severe is CVE-2024-40722?: CVE-2024-40722 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-2024-40722 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-2024-40722?: CVE-2024-40722 affects Changingtec Tcb Servisign. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-40722?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-40722 have an EU (EUVD) identifier?: Yes. CVE-2024-40722 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-38587.
When was CVE-2024-40722 published?: CVE-2024-40722 was published on 2024-08-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:changingtec:tcb_servisign:*:*:*:*:*:windows:*:*

More vulnerabilities in Changingtec Tcb Servisign

CVE-2024-40721 — High (CVSS 8.8): The specific API in TCBServiSign Windows Version from CHANGING Information Technology does not properly validate…
CVE-2024-40720 — High (CVSS 8.8): The specific API in TCBServiSign Windows Version from CHANGING Information Technology does not properly validate…
CVE-2024-40719 — Medium (CVSS 6.5): The encryption strength of the authorization keys in CHANGING Information Technology TCBServiSign Windows Version is…

All CVEs affecting Changingtec Tcb Servisign →

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