Use of Uninitialized Variable in Google Chrome - CVE-2026-11668

Vulnerability identifier: #VU133986

CSH Severity: High

CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-11668

CWE-ID: CWE-457

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to use of uninitialized variable in Codecs. A remote attacker can trick the victim into visiting a specially crafted website and execute arbitrary code on the system.

Google Chrome
Microsoft Edge
Debian Linux
Fedora
Chrome OS
chromium
chromium (Debian package)

Install updates from vendor's website.

Google Chrome - update to 149.0.7827.102
Microsoft Edge - update to 149.0.4022.62
Chrome OS - update to 144.0.7559.257
chromium - addressed in versions 149.0.7827.102-1.el9, 149.0.7827.102-1.el10_2, 149.0.7827.102-1.el10_3, 149.0.7827.102-1.fc43, 149.0.7827.102-1.fc44
chromium (Debian package) - addressed in versions 149.0.7827.102-1~deb12u1, 149.0.7827.102-1~deb13u1

• https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.html

• Multiple vulnerabilities in Google Chrome
• Debian update for chromium
• Fedora EPEL 10.3 update for chromium
• Fedora EPEL 10.2 update for chromium
• Fedora EPEL 9 update for chromium
• Fedora 43 update for chromium
• Fedora 44 update for chromium
• Multiple vulnerabilities in Microsoft Edge
• Multiple vulnerabilities in Google ChromeOS LTS