CVE-2026-6306
Modified Modified - Updated After Analysis
Heap Buffer Overflow in PDFium Enables Remote Code Execution

Publication date: 2026-04-15

Last updated on: 2026-05-26

Assigner: 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 Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-04-15
Last Modified
2026-05-26
Generated
2026-06-16
AI Q&A
2026-04-15
EPSS Evaluated
2026-06-15
NVD
CVE-2026-6306
EUVD
EUVD-2026-23054
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
google chrome to 147.0.7727.101 (exc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
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 Quick Actions
Instant insights powered by AI
Executive Summary

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.

Impact Analysis

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.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-6306. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart