How severe is CVE-2025-56219?

CVE-2025-56219 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability high.

Is CVE-2025-56219 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-56219?

CVE-2025-56219 affects Ascertia Signinghub. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-56219?

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-2025-56219 have an EU (EUVD) identifier?

Yes. CVE-2025-56219 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-35050.

When was CVE-2025-56219 published?

CVE-2025-56219 was published on 2025-10-20 and last updated on 2026-07-05.

CVE-2025-56219

CVE-2025-56219 is a high-severity vulnerability in Ascertia Signinghub with a CVSS 3.x base score of 7.1. 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-284.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-35050
Weakness: CWE-284
Affected product: Ascertia Signinghub
Published: 2025-10-20
Last modified: 2026-07-05

Description

Incorrect access control in SigningHub v8.6.8 allows attackers to arbitrarily add user accounts without any rate limiting. This can lead to a resource exhaustion and a Denial of Service (DoS) when an excessively large number of user accounts are created.

Frequently asked questions

What is CVE-2025-56219?: Incorrect access control in SigningHub v8.6.8 allows attackers to arbitrarily add user accounts without any rate limiting. This can lead to a resource exhaustion and a Denial of Service (DoS) when an excessively large number of user accounts are created.
How severe is CVE-2025-56219?: CVE-2025-56219 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability high.
Is CVE-2025-56219 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-56219?: CVE-2025-56219 affects Ascertia Signinghub. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-56219?: 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-2025-56219 have an EU (EUVD) identifier?: Yes. CVE-2025-56219 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-35050.
When was CVE-2025-56219 published?: CVE-2025-56219 was published on 2025-10-20 and last updated on 2026-07-05.

References

https://github.com/saykino/CVE-2025-56219

EU advisories (EUVD)

Affected products (1)

cpe:2.3:a:ascertia:signinghub:*:*:*:*:*:*:*:*

More vulnerabilities in Ascertia Signinghub

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CVE-2025-56218 — Critical (CVSS 9.8): An arbitrary file upload vulnerability in SigningHub v8.6.8 allows attackers to execute arbitrary code via uploading a…
CVE-2025-56224 — High (CVSS 8.1): A lack of rate limiting in the One-Time Password (OTP) verification endpoint of SigningHub v8.6.8 allows attackers to…
CVE-2025-56223 — High (CVSS 7.5): A lack of rate limiting in the component /Home/UploadStreamDocument of SigningHub v8.6.8 allows attackers to cause a…
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