What is CVE-2026-54982?

CVE-2026-54982 is a security advisory published by Microsoft Security Response Center (MSRC) with Critical severity. Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability

Which CVE IDs does CVE-2026-54982 cover?

CVE-2026-54982 covers the following CVE IDs: CVE-2026-54982. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-54982?

CVE-2026-54982 has a CVSS v3 base score of 8.8, published by Microsoft Security Response Center (MSRC).

CVE-2026-54982CriticalCVSS 8.8

Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

July 17, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-54982 →

🔗 CVE IDs covered (1)

📋 Description