How severe is CVE-2025-40718?

CVE-2025-40718 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-40718 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-40718?

CVE-2025-40718 affects Quiter Quiter Gateway. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-40718?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-40718 have an EU (EUVD) identifier?

Yes. CVE-2025-40718 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-20459.

When was CVE-2025-40718 published?

CVE-2025-40718 was published on 2025-07-08 and last updated on 2026-06-17.

CVE-2025-40718

CVE-2025-40718 is a high-severity vulnerability in Quiter Quiter Gateway with a CVSS 3.x base score of 7.5. 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-209.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 6.9
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-20459
Weakness: CWE-209
Affected product: Quiter Quiter Gateway
Published: 2025-07-08
Last modified: 2026-06-17

Description

Improper error handling vulnerability in versions prior to 4.7.0 of Quiter Gateway by Quiter. This vulnerability allows an attacker to send malformed payloads to generate error messages containing sensitive information.

Frequently asked questions

What is CVE-2025-40718?: Improper error handling vulnerability in versions prior to 4.7.0 of Quiter Gateway by Quiter. This vulnerability allows an attacker to send malformed payloads to generate error messages containing sensitive information.
How severe is CVE-2025-40718?: CVE-2025-40718 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-40718 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-40718?: CVE-2025-40718 affects Quiter Quiter Gateway. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-40718?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-40718 have an EU (EUVD) identifier?: Yes. CVE-2025-40718 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-20459.
When was CVE-2025-40718 published?: CVE-2025-40718 was published on 2025-07-08 and last updated on 2026-06-17.

References

https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-quiterweb-autoweb-quiter

Affected products (1)

cpe:2.3:a:quiter:quiter_gateway:*:*:*:*:*:*:*:*

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