What is GHSA-556c-q8mh-43jc?

GHSA-556c-q8mh-43jc is a security advisory published by GitHub Security Advisories with Critical severity. Use after free in Windows Network Load Balancing allows an unauthorized attacker to execute code...

Which CVE IDs does GHSA-556c-q8mh-43jc cover?

GHSA-556c-q8mh-43jc covers the following CVE IDs: CVE-2026-83862. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-556c-q8mh-43jc?

GHSA-556c-q8mh-43jc has a CVSS v3 base score of 9.8, published by GitHub Security Advisories.

GHSA-556c-q8mh-43jcCriticalCVSS 9.8

Use after free in Windows Network Load Balancing allows an unauthorized attacker to execute code...

Vendor

GitHub Security Advisories

Published

October 13, 2026

Last Modified

October 13, 2026

🔗 CVE IDs covered (1)

CVE-2026-83862 →

📋 Description

Use after free in Windows Network Load Balancing allows an unauthorized attacker to execute code over a network.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-83862
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83862
https://github.com/advisories/GHSA-556c-q8mh-43jc