Vulnerability in Microsoft Windows 10 1507

CVE-2025-21377

NTLM Hash Disclosure Spoofing Vulnerability

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.399 (98.6th percentile), scored .

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-21377: rose from 0.245 to 0.399.

EPSS over last 30 days · oldest: 0.245 · newest: 0.399 · change: +0.155

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-21377?
CVE-2025-21377 is a medium-severity vulnerability in Microsoft Windows 10 1507, classified under External Control of File Name or Path. CVSS score: 6.5/10. Published 2025-02-11.
How severe is CVE-2025-21377?
Medium severity. CVSS v3 base score is 6.5 out of 10.