CVE-2026-62816
Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution vulnerability
MSRC advisory August 11, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-62816
- Affected products
- Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution · Microsoft Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution · Microsoft
What happened
Heap-based buffer overflow in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over an adjacent network.
What it means for your business
Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution vulnerability (CVE-2026-62816) was added to Microsoft’s security update guidance. Heap-based buffer overflow in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over an adjacent network. If you need help checking exposure, call (864) 335-9223.
Sources
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