Google Patches Seven Critical Chrome RCE Flaws in Stable Update
Google released a Chrome Stable channel update to fix 33 vulnerabilities, including seven Critical flaws that could allow remote code execution if a user visits a malicious webpage. The update moves Chrome to 149.0.7827.155/.156 on Windows and macOS and 149.0.7827.155 on Linux, with Google rolling it out gradually. The most serious issues are largely use-after-free memory corruption bugs affecting components including WebShare, Digital Credentials, File Input, Passwords, and Web Authentication.
Named issues include CVE-2026-12437 in WebShare, CVE-2026-12439 and CVE-2026-12440 in Digital Credentials, CVE-2026-12442 in Passwords, and CVE-2026-12443 in Web Authentication. Google also patched High-severity flaws in WebRTC, Extensions, Safe Browsing, GPU, File System Access, Media, Downloads, and the Tab Strip, with risks ranging from data leakage and heap corruption to sandbox escape and exploit chaining. The company said technical details will remain limited until more users update and urged users and enterprises to install the patch and relaunch Chrome promptly.

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How this story unfolded
3 events from the most recent confirmed update back to the earliest known activity.
Debian publishes DSA 6351-1 Chromium security update
Debian issued security advisory DSA 6351-1 for Chromium. This is a separate downstream vendor security update from the previously listed Google Chrome and Mozilla Firefox releases.
Mozilla releases Firefox 152 security updates fixing 40 vulnerabilities
Mozilla released Firefox 152 security updates on June 17, 2026, fixing 40 vulnerabilities, including 13 high-severity flaws such as use-after-free, privilege escalation, sandbox escape, JIT miscompilation, and other memory safety bugs. Mozilla also issued related updates for Firefox ESR, Thunderbird, and Firefox for iOS.
Google releases Chrome 149 security update fixing 33 vulnerabilities
Google released a Chrome Stable channel security update that fixes 33 vulnerabilities, including seven critical flaws that could enable remote code execution. The update advances Chrome to version 149.0.7827.155/.156 on Windows and macOS and 149.0.7827.155 on Linux, with rollout beginning gradually.
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Sources
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Google Chrome Multiple Vulnerabilities
hkcert.org
Open source[SECURITY] [DSA 6351-1] chromium security update
lists.debian.org
Open sourceGoogle Chrome security advisory (AV26-609) - Malware News - Malware Analysis, News and Indicators
malware.news
Open sourceGoogle Chrome security advisory (AV26-609) - Canadian Centre for Cyber Security
cyber.gc.ca
Open sourceChrome and Firefox Updated to Patch Critical, High-Severity Vulnerabilities - SecurityWeek
securityweek.com
Open sourceCritical Chrome Vulnerabilities Allow Attackers to Execute Arbitrary Code - Update Now!
cybersecuritynews.com
Open sourceChrome Security Update Patches 33 Vulnerabilities
securityonline.info
Open sourceChrome Releases: Stable Channel Update for Desktop
chromereleases.googleblog.com
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