CVE-2026-78964

Analyzed Analyzed - Analysis Complete

Use After Free in Google Chrome iOS

Publication date: 2026-08-25

Last updated on: 2026-08-27

Assigner: Chrome

Description

Use after free in Sync in Google Chrome on on iOS prior to 152.0.7977.65 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Low)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-25

Last Modified

2026-08-27

Generated

2026-09-15

AI Q&A

2026-08-26

EPSS Evaluated

2026-09-13

NVD

CVE-2026-78964

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 152.0.7977.65 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-416	The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Attack-Flow Graph

Executive Summary

This vulnerability is a use after free issue in the Sync component of Google Chrome on iOS. It occurs when a program tries to use memory that has already been freed, potentially allowing a remote attacker to execute arbitrary code outside the sandbox. The attacker would need to trick a user into visiting a specially crafted HTML page.

Detection Guidance

This vulnerability is specific to Google Chrome on iOS versions prior to 152.0.7977.65. Detection involves checking the installed Chrome version on iOS devices. If the version is below 152.0.7977.65, the system is vulnerable. No specific network commands are provided for detection as this is a client-side issue.

Impact Analysis

If exploited, this vulnerability could allow an attacker to run malicious code on your device. This might lead to unauthorized access to your data, installation of malware, or other malicious activities. However, the attacker would need to convince you to visit a malicious webpage.

Compliance Impact

This vulnerability involves a use-after-free issue in Google Chrome on iOS that could allow remote attackers to execute arbitrary code outside the sandbox via crafted HTML pages. Such vulnerabilities may lead to unauthorized data access or manipulation, which could impact compliance with GDPR (data protection) and HIPAA (health data privacy) by potentially exposing sensitive user information or violating data integrity requirements.

Mitigation Strategies

Update Google Chrome on iOS to version 152.0.7977.65 or later to address the use after free vulnerability in Sync.

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