CVE-2026-12447: Heap buffer overflow in Google Chrome
A heap buffer overflow vulnerability exists in the WebRTC component of Google Chrome prior to version 149.0.7827.155. This flaw allows a remote attacker to execute arbitrary code within the sandbox by delivering a crafted HTML page. The vulnerability is classified with high severity by Chromium security. A fix is available in Chrome version 149.0.7827.155.
AI Analysis
Technical Summary
CVE-2026-12447 is a heap buffer overflow vulnerability in the WebRTC module of Google Chrome. It affects versions before 149.0.7827.155 and enables remote code execution inside the sandbox environment via a maliciously crafted HTML page. The vulnerability was publicly disclosed and addressed by Google in a stable channel update. No CVSS score is provided, but the Chromium security team rates this as high severity.
Potential Impact
Successful exploitation allows a remote attacker to execute arbitrary code within the sandbox of the affected Chrome browser. This could lead to compromise of the browser process and potentially further attacks depending on sandbox escape capabilities. However, no known exploits in the wild have been reported at this time.
Mitigation Recommendations
Users should update Google Chrome to version 149.0.7827.155 or later to remediate this vulnerability. The vendor advisory confirms that this update addresses the issue. No additional mitigations are specified or required once the update is applied.
CVE-2026-12447: Heap buffer overflow in Google Chrome
Description
A heap buffer overflow vulnerability exists in the WebRTC component of Google Chrome prior to version 149.0.7827.155. This flaw allows a remote attacker to execute arbitrary code within the sandbox by delivering a crafted HTML page. The vulnerability is classified with high severity by Chromium security. A fix is available in Chrome version 149.0.7827.155.
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-2026-12447 is a heap buffer overflow vulnerability in the WebRTC module of Google Chrome. It affects versions before 149.0.7827.155 and enables remote code execution inside the sandbox environment via a maliciously crafted HTML page. The vulnerability was publicly disclosed and addressed by Google in a stable channel update. No CVSS score is provided, but the Chromium security team rates this as high severity.
Potential Impact
Successful exploitation allows a remote attacker to execute arbitrary code within the sandbox of the affected Chrome browser. This could lead to compromise of the browser process and potentially further attacks depending on sandbox escape capabilities. However, no known exploits in the wild have been reported at this time.
Mitigation Recommendations
Users should update Google Chrome to version 149.0.7827.155 or later to remediate this vulnerability. The vendor advisory confirms that this update addresses the issue. No additional mitigations are specified or required once the update is applied.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-06-16T19:38:26.765Z
- 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: 6a31ffc60b89be68889b018b
Added to database: 6/17/2026, 2:00:38 AM
Last enriched: 6/17/2026, 2:17:00 AM
Last updated: 6/17/2026, 4:54:03 AM
Views: 2
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