What is CVE-2026-20834?

CVE-2026-20834 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Windows Spoofing Vulnerability

Which CVE IDs does CVE-2026-20834 cover?

CVE-2026-20834 covers the following CVE IDs: CVE-2026-20834. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

CVE-2026-20834 has a CVSS v3 base score of 4.6, published by Microsoft Security Response Center (MSRC).

CVE-2026-20834HighCVSS 4.6

Vendor

Published

June 2, 2026

Last Modified

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