CVE-2026-6306
Received
Received - Intake
Heap Buffer Overflow in PDFium Enables Remote Code Execution
Publication date: 2026-04-15
Last updated on: 2026-04-17
Assigner: Chrome
Description
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 Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| chrome | to 147.0.7727.101 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-122 | A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a heap buffer overflow in PDFium, a component of Google Chrome, affecting versions prior to 147.0.7727.101. It allows a remote attacker to execute arbitrary code within a sandbox environment by using a specially crafted PDF file.
How can this vulnerability impact me? :
The vulnerability can allow an attacker to run arbitrary code on your system through a malicious PDF file, potentially compromising the security of your device even though the code execution occurs inside a sandbox.
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