CVE-2025-54321
In Ascertia SigningHub through 8.6.8, there is a lack of rate limiting on the reset password function, leading to an email bombing vulnerability. An...
- Published
- Nov 18, 2025
- Updated
- Nov 19, 2025
- Assigning CNA
- mitre
- Evidence observed
- Aug 6, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 39.9%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
In Ascertia SigningHub through 8.6.8, there is a lack of rate limiting on the reset password function, leading to an email bombing vulnerability. An authenticated attacker can exploit this by automating reset password requests.
Sources
1- CVE-2025-54321Informational
Documentation of CVE-2025-54321: an email bombing vulnerability in Ascertia SigningHub's reset password function due to missing rate limiting, allowing authenticated attackers to flood user mailboxes.
Responsible use
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