CVE-2026-6305
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(). |
| CWE-787 | The product writes data past the end, or before the beginning, of the intended buffer. |
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 used in Google Chrome versions prior to 147.0.7727.101. It allows a remote attacker to execute arbitrary code inside a sandbox by using a specially crafted PDF file.
How can this vulnerability impact me? :
The vulnerability can lead to remote code execution within the sandbox environment of Google Chrome. This means an attacker could potentially run malicious code on your system by tricking you into opening a crafted PDF file, which could compromise your data, privacy, or system integrity.
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