CVE-2026-6306: Heap buffer overflow in Google Chrome
Heap buffer overflow in PDFium in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted PDF file. (Chromium security severity: High)
AI Analysis
Technical Summary
This vulnerability involves a heap buffer overflow in PDFium, the PDF rendering engine used by Google Chrome. It affects Chrome versions before 147.0.7727.101. Exploitation requires a user to open a crafted PDF file, which can lead to arbitrary code execution inside the sandbox environment. The CVSS 3.1 base score is 8.8, reflecting high impact on confidentiality, integrity, and availability with network attack vector and no privileges required but user interaction needed.
Potential Impact
Successful exploitation could allow remote attackers to execute arbitrary code within the sandbox of the affected Chrome browser, potentially compromising the confidentiality, integrity, and availability of the system running the browser. The sandbox limits the scope of the attack but does not eliminate risk. No known active exploits have been reported.
Mitigation Recommendations
The vendor advisory link is provided but does not explicitly confirm patch availability or remediation level in the supplied data. Users should update to Chrome version 147.0.7727.101 or later, as the vulnerability affects versions prior to this. Patch status is not yet confirmed—check the official Google Chrome release blog for the latest remediation guidance.
CVE-2026-6306: Heap buffer overflow in Google Chrome
Description
Heap buffer overflow in PDFium in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted PDF file. (Chromium security severity: High)
CVSS v3.1
Score 8.8high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a heap buffer overflow in PDFium, the PDF rendering engine used by Google Chrome. It affects Chrome versions before 147.0.7727.101. Exploitation requires a user to open a crafted PDF file, which can lead to arbitrary code execution inside the sandbox environment. The CVSS 3.1 base score is 8.8, reflecting high impact on confidentiality, integrity, and availability with network attack vector and no privileges required but user interaction needed.
Potential Impact
Successful exploitation could allow remote attackers to execute arbitrary code within the sandbox of the affected Chrome browser, potentially compromising the confidentiality, integrity, and availability of the system running the browser. The sandbox limits the scope of the attack but does not eliminate risk. No known active exploits have been reported.
Mitigation Recommendations
The vendor advisory link is provided but does not explicitly confirm patch availability or remediation level in the supplied data. Users should update to Chrome version 147.0.7727.101 or later, as the vulnerability affects versions prior to this. Patch status is not yet confirmed—check the official Google Chrome release blog for the latest remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-04-14T18:12:23.161Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop_15.html","vendor":"Google"}]
Threat ID: 69dfe7b982d89c981f913cd0
Added to database: 4/15/2026, 7:32:09 PM
Last enriched: 5/26/2026, 7:39:31 PM
Last updated: 5/30/2026, 6:56:34 AM
Views: 64
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