CVE-2025-56764

MEDIUMNVD 5.36.5▲Trending — 3 sources updated this week

5.3

Trivision NC-227WF firmware 5.80 (build 20141010) login mechanism reveals whether a username exists or not by returning different error messages ("Unknown user" vs. "Wrong password"), allowing an attacker to enumerate valid usernames.

CVSS v3: 5.3
EG Score: 6.5(medium)
EPSS: 13.7%
KEV: Not listed

Published

September 29, 2025

Last Modified

November 11, 2025

References (2)

cve@mitrehttps://github.com/Remenis/CVE-2025-56764
cve@mitrehttps://github.com/Remenis/CVE-2025-56764-trivision-nc227wf

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 9× 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.

2026-06-01 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 21:55 UTCEG score recompute
2026-05-29 21:55 UTCGHSA enrichment
2026-05-29 13:44 UTCepss_batch

Frequently asked(5)

What is CVE-2025-56764?

CVE-2025-56764 is a medium vulnerability published on September 29, 2025. Trivision NC-227WF firmware 5.80 (build 20141010) login mechanism reveals whether a username exists or not by returning different error messages ("Unknown user" vs. "Wrong password"), allowing an attacker to enumerate valid usernames.

When was CVE-2025-56764 disclosed?

CVE-2025-56764 was first published in the National Vulnerability Database on September 29, 2025, with the most recent update on November 11, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-56764 actively exploited?

CVE-2025-56764 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 13.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-56764?

CVE-2025-56764 has a CVSS v3 base score of 5.3 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 6.5.

How do I remediate CVE-2025-56764?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-56764, 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-2025-56764

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(2)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2025-56764?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)