Unrated severityNVD Advisory· Published Jul 14, 2026· Updated Aug 3, 2026

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

CVE-2026-54982

Description

Integer underflow (wrap or wraparound) in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over an adjacent network.

Affected products

Microsoft/Windows Reliable Multicast Transport Driver (RMCAST)llm-fuzzy

Patches

Vulnerability mechanics

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54982mitrevendor-advisorypatch

News mentions

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