What is GHSA-w863-jvv5-xfq6?

GHSA-w863-jvv5-xfq6 is a security advisory published by GitHub Security Advisories with High severity. Heap-based buffer overflow in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized...

Which CVE IDs does GHSA-w863-jvv5-xfq6 cover?

GHSA-w863-jvv5-xfq6 covers the following CVE IDs: CVE-2026-62816. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-w863-jvv5-xfq6?

GHSA-w863-jvv5-xfq6 has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-w863-jvv5-xfq6HighCVSS 8.8

Heap-based buffer overflow in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized...

Vendor

GitHub Security Advisories

Published

August 11, 2026

Last Modified

August 11, 2026

🔗 CVE IDs covered (1)

CVE-2026-62816 →

📋 Description

Heap-based buffer overflow in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over an adjacent network.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-62816
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62816
https://github.com/advisories/GHSA-w863-jvv5-xfq6