What is CVE-2026-50364?

CVE-2026-50364 is a high-severity vulnerability in Microsoft Windows 10 Version 21h2, classified under Improper Link Resolution Before File Access. CVSS score: 7.3/10. Published 2026-07-14.

How severe is CVE-2026-50364?

High severity. CVSS v3 base score is 7.3 out of 10.

Vulnerability in Microsoft Windows 10 Version 21h2

CVE-2026-50364

Improper link resolution before file access ('link following') in Windows Server Backup allows an authorized attacker to elevate privileges locally.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.

Affected products

Microsoft Windows 10 Version 21h2 — versions 10.0.19044.0
Microsoft Windows 10 Version 22h2 — versions 10.0.19045.0
Microsoft Windows 11 Version 24h2 — versions 10.0.26100.0
Microsoft Windows 11 Version 25h2 — versions 10.0.26200.0
Microsoft Windows 11 Version 26h1 — versions 10.0.28000.0

Weakness classification (CWE)

CWE-59 — Improper Link Resolution Before File Access

References

secure@microsoft.com (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-50364?: CVE-2026-50364 is a high-severity vulnerability in Microsoft Windows 10 Version 21h2, classified under Improper Link Resolution Before File Access. CVSS score: 7.3/10. Published 2026-07-14.
How severe is CVE-2026-50364?: High severity. CVSS v3 base score is 7.3 out of 10.