CVE-2026-12466: Heap buffer overflow in Google Chrome
A heap buffer overflow vulnerability exists in the WebRTC component of Google Chrome on Windows platforms prior to version 149.0.7827.155. This flaw allows a remote attacker to execute arbitrary code by delivering a crafted HTML page. The vulnerability is classified with high severity by Chromium security. A fixed version, 149.0.7827.155, has been released to address this issue.
AI Analysis
Technical Summary
CVE-2026-12466 is a heap buffer overflow vulnerability in the WebRTC implementation of Google Chrome on Windows. The vulnerability allows remote code execution when a user visits a maliciously crafted HTML page. The issue affects all Chrome versions before 149.0.7827.155 on Windows. Google has released version 149.0.7827.155 to fix this vulnerability. No public exploits are known to be in the wild at this time.
Potential Impact
Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on the affected system, potentially leading to full compromise of the user's environment. The vulnerability is limited to Windows versions of Chrome prior to 149.0.7827.155 and involves the WebRTC component.
Mitigation Recommendations
Users and administrators should update Google Chrome on Windows to version 149.0.7827.155 or later to remediate this vulnerability. Since this is a client-side application, applying the official update is the primary and recommended mitigation. No additional vendor advisories indicate alternative mitigations or that no action is required.
CVE-2026-12466: Heap buffer overflow in Google Chrome
Description
A heap buffer overflow vulnerability exists in the WebRTC component of Google Chrome on Windows platforms prior to version 149.0.7827.155. This flaw allows a remote attacker to execute arbitrary code by delivering a crafted HTML page. The vulnerability is classified with high severity by Chromium security. A fixed version, 149.0.7827.155, has been released to address this issue.
Affected software
pkg:github/chromium/chromiumRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-12466 is a heap buffer overflow vulnerability in the WebRTC implementation of Google Chrome on Windows. The vulnerability allows remote code execution when a user visits a maliciously crafted HTML page. The issue affects all Chrome versions before 149.0.7827.155 on Windows. Google has released version 149.0.7827.155 to fix this vulnerability. No public exploits are known to be in the wild at this time.
Potential Impact
Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on the affected system, potentially leading to full compromise of the user's environment. The vulnerability is limited to Windows versions of Chrome prior to 149.0.7827.155 and involves the WebRTC component.
Mitigation Recommendations
Users and administrators should update Google Chrome on Windows to version 149.0.7827.155 or later to remediate this vulnerability. Since this is a client-side application, applying the official update is the primary and recommended mitigation. No additional vendor advisories indicate alternative mitigations or that no action is required.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-06-16T19:38:33.475Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_01750511403.html","vendor":"Google"}]
Threat ID: 6a31ffcc0b89be68889b026e
Added to database: 6/17/2026, 2:00:44 AM
Last enriched: 6/17/2026, 2:15:28 AM
Last updated: 6/17/2026, 5:50:18 AM
Views: 11
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