What is GHSA-6c88-88jx-2hcr?

GHSA-6c88-88jx-2hcr is a security advisory published by GitHub Security Advisories with High severity. A local low privileged attacker or process can access I/O ports via TcRouter.sys because of...

Which CVE IDs does GHSA-6c88-88jx-2hcr cover?

GHSA-6c88-88jx-2hcr covers the following CVE IDs: CVE-2026-18767. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-6c88-88jx-2hcr?

GHSA-6c88-88jx-2hcr has a CVSS v3 base score of 7.8, published by GitHub Security Advisories.

GHSA-6c88-88jx-2hcrHighCVSS 7.8

A local low privileged attacker or process can access I/O ports via TcRouter.sys because of...

Vendor

GitHub Security Advisories

Published

November 11, 2026

Last Modified

November 11, 2026

🔗 CVE IDs covered (1)

CVE-2026-18767 →

📋 Description

A local low privileged attacker or process can access I/O ports via TcRouter.sys because of exposed IOCTL function calls resulting in a full compromise of the affected devices.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-18767
https://www.certvde.com/en/advisories/VDE-2026-087
https://github.com/advisories/GHSA-6c88-88jx-2hcr