CVE-2026-7339: Heap buffer overflow in Google Chrome
Heap buffer overflow in WebRTC in Google Chrome prior to 147.0.7727.138 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)
AI Analysis
Technical Summary
This vulnerability involves a heap buffer overflow in the WebRTC implementation within Google Chrome before version 147.0.7727.138. An attacker can exploit this by delivering a crafted HTML page that triggers heap corruption, potentially leading to arbitrary code execution or denial of service. The CVSS score of 8.8 reflects high impact across confidentiality, integrity, and availability with no required privileges and low attack complexity, but user interaction is needed.
Potential Impact
Successful exploitation could result in full compromise of the affected system's confidentiality, integrity, and availability due to heap corruption. This could allow remote code execution or cause the browser to crash, disrupting user activity.
Mitigation Recommendations
A fix is available in Google Chrome version 147.0.7727.138 and later. Users and administrators should update to this version or newer to remediate the vulnerability. Refer to the official Google Chrome stable channel update advisory at https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop_28.html for detailed update instructions.
CVE-2026-7339: Heap buffer overflow in Google Chrome
Description
Heap buffer overflow in WebRTC in Google Chrome prior to 147.0.7727.138 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)
CVSS v3.1
Score 8.8high
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a heap buffer overflow in the WebRTC implementation within Google Chrome before version 147.0.7727.138. An attacker can exploit this by delivering a crafted HTML page that triggers heap corruption, potentially leading to arbitrary code execution or denial of service. The CVSS score of 8.8 reflects high impact across confidentiality, integrity, and availability with no required privileges and low attack complexity, but user interaction is needed.
Potential Impact
Successful exploitation could result in full compromise of the affected system's confidentiality, integrity, and availability due to heap corruption. This could allow remote code execution or cause the browser to crash, disrupting user activity.
Mitigation Recommendations
A fix is available in Google Chrome version 147.0.7727.138 and later. Users and administrators should update to this version or newer to remediate the vulnerability. Refer to the official Google Chrome stable channel update advisory at https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop_28.html for detailed update instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-04-28T20:02:35.329Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop_28.html","vendor":"Google"}]
Threat ID: 69f13d70cbff5d8610e3543e
Added to database: 4/28/2026, 11:06:24 PM
Last enriched: 5/6/2026, 2:09:17 AM
Last updated: 6/13/2026, 11:52:30 AM
Views: 87
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