CVE-2025-54321

CRITICALNVD 9.89.8—Trending — 3 sources updated this week

9.8

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.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 8.1%
KEV: Not listed

Published

November 18, 2025

Last Modified

November 20, 2025

References (2)

cve@mitrehttps://github.com/saykino/CVE-2025-54321
cve@mitrehttps://www.ascertia.com/company/vulnerability-disclosure-policy/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-799

Data Freshness Timeline

(refreshed 7× in last 7d / 7× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 19:06 UTCEG score recompute
2026-05-29 19:06 UTCGHSA enrichment
2026-05-29 13:44 UTCepss_batch

Frequently asked(5)

What is CVE-2025-54321?

CVE-2025-54321 is a critical vulnerability published on November 18, 2025. 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.

When was CVE-2025-54321 disclosed?

CVE-2025-54321 was first published in the National Vulnerability Database on November 18, 2025, with the most recent update on November 20, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-54321 actively exploited?

CVE-2025-54321 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 8.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-54321?

CVE-2025-54321 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2025-54321?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-54321, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2025-54321

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2025-54321?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)