CVE-2025-56218

CRITICALNVD 9.89.8—

9.8

An arbitrary file upload vulnerability in SigningHub v8.6.8 allows attackers to execute arbitrary code via uploading a crafted PDF file.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 45.4%
KEV: Not listed

Published

October 17, 2025

Last Modified

October 27, 2025

References (3)

cve@mitrehttp://ascertia.com
cve@mitrehttp://signinghub.com
cve@mitrehttps://github.com/saykino/CVE-2025-56218

Weakness Classification(1)

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

CWE-434Unrestricted Upload of File with Dangerous Type

Data Freshness Timeline

(refreshed 14× in last 7d / 20× 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.

2026-06-07 15:24 UTCepss_batch
2026-06-07 15:24 UTCepss_batch
2026-06-06 13:47 UTCepss_batch
2026-06-06 13:47 UTCepss_batch
2026-06-05 22:46 UTCepss_batch
2026-06-05 22:46 UTCepss_batch
2026-06-05 06:10 UTCepss_batch
2026-06-05 06:10 UTCepss_batch
2026-06-04 13:12 UTCepss_batch
2026-06-04 13:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
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 20:34 UTCEG score recompute
2026-05-29 20:34 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2025-56218?

CVE-2025-56218 is a critical vulnerability published on October 17, 2025. An arbitrary file upload vulnerability in SigningHub v8.6.8 allows attackers to execute arbitrary code via uploading a crafted PDF file.

When was CVE-2025-56218 disclosed?

CVE-2025-56218 was first published in the National Vulnerability Database on October 17, 2025, with the most recent update on October 27, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-56218 actively exploited?

CVE-2025-56218 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 45.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-56218?

CVE-2025-56218 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2025-56218?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-56218, 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-2025-56218

📅 Published

🔄 Last Modified

🔗 References (3)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2025-56218?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (3)

Frequently asked(5)

Related CVEs(same CWE)