CVE-2026-17665

Analyzed Analyzed - Analysis Complete

Use After Free in Google Chrome V8 Engine

Publication date: 2026-07-30

Last updated on: 2026-08-03

Assigner: Chrome

Description

Use after free in V8 in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-07-30

Last Modified

2026-08-03

Generated

2026-08-19

AI Q&A

2026-07-30

EPSS Evaluated

2026-08-18

NVD

CVE-2026-17665

EUVD

EUVD-2026-50791

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 151.0.7922.72 (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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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 V8, the JavaScript engine used by Google Chrome. A use-after-free occurs when a program continues to use a pointer to memory that has already been freed, potentially leading to arbitrary code execution. In this case, a remote attacker could exploit this by crafting a malicious HTML page to trigger the flaw and execute code within Chrome's sandbox.

Detection Guidance

I don't know

Detection requires checking Chrome version. Run: chrome://version/ in Chrome to see version. If version is below 151.0.7922.72, the system is vulnerable.

Impact Analysis

If exploited, this vulnerability could allow an attacker to run arbitrary code on your system through a malicious webpage. Since it occurs within Chrome's sandbox, the impact is limited to the browser's context, but it could still lead to data theft, installation of malware, or further system compromise depending on the attacker's goals.

Compliance Impact

This vulnerability is a use-after-free issue in V8 (Chrome's JavaScript engine) that allows remote code execution inside a sandbox. Such vulnerabilities could potentially lead to unauthorized data access or manipulation, which may impact compliance with GDPR (data protection) or HIPAA (healthcare data privacy) if exploited.

Mitigation Strategies

Update Google Chrome to version 151.0.7922.72 or later immediately. Disable automatic updates temporarily if needed, but prioritize patching.

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