What is CVE-2026-70348?

CVE-2026-70348 is a medium-severity vulnerability in Microsoft Windows 11 Version 24h2, classified under Improper Link Resolution Before File Access. CVSS score: 5.5/10. Published 2026-08-11.

How severe is CVE-2026-70348?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Microsoft Windows 11 Version 24h2

CVE-2026-70348

Improper link resolution before file access ('link following') in Windows Management Services allows an authorized attacker to deny service locally.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

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-2026-70348?: CVE-2026-70348 is a medium-severity vulnerability in Microsoft Windows 11 Version 24h2, classified under Improper Link Resolution Before File Access. CVSS score: 5.5/10. Published 2026-08-11.
How severe is CVE-2026-70348?: Medium severity. CVSS v3 base score is 5.5 out of 10.