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

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Meta Information

Published

2026-05-28

Last Modified

2026-05-29

Generated

2026-07-09

AI Q&A

2026-05-29

EPSS Evaluated

2026-07-08

NVD

CVE-2026-9963

EUVD

EUVD-2026-33105

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 148.0.7778.216 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-457	The code uses a variable that has not been initialized, leading to unpredictable or unintended results.

Attack-Flow Graph

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.

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