Ghostwire

CVE-2026-12011: Use after free in WebMIDI in Google Chrome on Windows prior to 149.0.7827.115 allowed a remote attacker who had...

HIGH CVSS 8.3 Exploit Available

Published: June 11, 2026 | Last Modified: June 12, 2026

Description

Use after free in WebMIDI in Google Chrome on Windows prior to 149.0.7827.115 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)

Ghostwire Analysis — What This Means Practically

High CVSS score indicates significant risk — exploitation could lead to substantial data exposure or system compromise.
Exploit code is reported to be available, increasing the likelihood of active exploitation.

This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.

References

chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_01962725
issues.chromium.org/issues/518108291
www.tenable.com/cve/CVE-2026-12011
www.cnnvd.org.cn/home/globalSearch?keyword=CVE-2026-12011