CVE-2026-9963
Analyzed Analyzed - Analysis Complete
Uninitialized Use in Google Chrome on iOS

Publication date: 2026-05-28

Last updated on: 2026-05-29

Assigner: Chrome

Description
Uninitialized Use in iOS in Google Chrome on iOS prior to 148.0.7778.216 allowed a remote attacker who convinced a user to engage in specific UI gestures to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-05-28
Last Modified
2026-05-29
Generated
2026-06-19
AI Q&A
2026-05-29
EPSS Evaluated
2026-06-18
NVD
CVE-2026-9963
EUVD
EUVD-2026-33105
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
google chrome to 148.0.7778.216 (exc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-457 The code uses a variable that has not been initialized, leading to unpredictable or unintended results.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability is an uninitialized use issue in Google Chrome on iOS versions prior to 148.0.7778.216. It allows a remote attacker to execute arbitrary code inside a sandbox by convincing a user to perform specific UI gestures on a crafted HTML page.

Impact Analysis

If exploited, this vulnerability can allow an attacker to run arbitrary code within the sandbox environment of Google Chrome on iOS. This could lead to unauthorized actions or compromise of the device's security, depending on the sandbox restrictions.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-9963. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart