What is CVE-2025-21219?

CVE-2025-21219 is a medium-severity vulnerability in Microsoft Windows 10 Version 1507, classified under CWE-41. CVSS score: 4.3/10. Published 2025-01-14.

How severe is CVE-2025-21219?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Microsoft Windows 10 Version 1507

CVE-2025-21219

MapUrlToZone Security Feature Bypass Vulnerability

EPSS: 0.003 (53.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C.

Affected products

Microsoft Windows 10 Version 1507 — versions 10.0.10240.0
Microsoft Windows 10 Version 1607 — versions 10.0.14393.0
Microsoft Windows 10 Version 1809 — versions 10.0.17763.0
Microsoft Windows 10 Version 21h2 — versions 10.0.19044.0
Microsoft Windows 10 Version 22h2 — versions 10.0.19045.0
Microsoft Windows 11 Version 22h2 — versions 10.0.22621.0
Microsoft Windows 11 Version 22h3 — versions 10.0.22631.0
Microsoft Windows 11 Version 23h2 — versions 10.0.22631.0
Microsoft Windows 11 Version 24h2 — versions 10.0.26100.0
Microsoft Windows Server 2016 — versions 10.0.14393.0

Weakness classification (CWE)

CWE-41

References

MapUrlToZone Security Feature Bypass Vulnerability (vendor-advisory, patch)

Frequently asked questions

What is CVE-2025-21219?: CVE-2025-21219 is a medium-severity vulnerability in Microsoft Windows 10 Version 1507, classified under CWE-41. CVSS score: 4.3/10. Published 2025-01-14.
How severe is CVE-2025-21219?: Medium severity. CVSS v3 base score is 4.3 out of 10.