CVE-2025-56224

Name: CVE-2025-56224
Creator: NVD / NIST
Published: 2025-10-20T13:15:44.98+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 0.46%

Last modified Jun 17, 2026

CVE-2025-56224 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. A lack of rate limiting in the One-Time Password (OTP) verification endpoint of SigningHub v8.6.8 allows attackers to bypass verification via a bruteforce attack.. EPSS estimates a 0.46% chance of exploitation in the next 30 days.

Description

A lack of rate limiting in the One-Time Password (OTP) verification endpoint of SigningHub v8.6.8 allows attackers to bypass verification via a bruteforce attack.

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

0.46%

36.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-307

Affected Software

Vendor	Product	Versions
Ascertia	Signinghub	<= 8.6.8

References

http://ascertia.comProduct
http://signinghub.comProduct
https://github.com/saykino/CVE-2025-56224Third Party Advisory

Timeline

Published: Oct 20, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-56224?

A lack of rate limiting in the One-Time Password (OTP) verification endpoint of SigningHub v8.6.8 allows attackers to bypass verification via a bruteforce attack.

How severe is CVE-2025-56224?

CVE-2025-56224 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.46% probability of exploitation in the next 30 days.

How do I fix CVE-2025-56224?

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-2025-56224?

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

Scan your code now

Source: NVD / NIST