What is GHSA-mcr5-39h2-72f4?

GHSA-mcr5-39h2-72f4 is a security advisory published by GitHub Security Advisories with High severity. Heap buffer overflow in WebRTC in Google Chrome on Windows prior to 149.0.7827.155 allowed a...

Which CVE IDs does GHSA-mcr5-39h2-72f4 cover?

GHSA-mcr5-39h2-72f4 covers the following CVE IDs: CVE-2026-12466. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-mcr5-39h2-72f4?

GHSA-mcr5-39h2-72f4 has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-mcr5-39h2-72f4HighCVSS 8.8

Heap buffer overflow in WebRTC in Google Chrome on Windows prior to 149.0.7827.155 allowed a...

Vendor

GitHub Security Advisories

Published

June 17, 2026

Last Modified

June 17, 2026

🔗 CVE IDs covered (1)

CVE-2026-12466 →

📋 Description

Heap buffer overflow in WebRTC in Google Chrome on Windows prior to 149.0.7827.155 allowed a remote attacker to execute arbitrary code via a crafted HTML page. (Chromium security severity: High)

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-12466
https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_01750511403.html
https://issues.chromium.org/issues/520199394
https://github.com/advisories/GHSA-mcr5-39h2-72f4