Description
Use after free in WindowDialog in Google Chrome prior to 154.0.8037.57 allowed a remote attacker leveraging social engineering to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)
Published: 2026-09-29
Score: 9.6 Critical
EPSS: < 1% Very Low
KEV: No
Impact: Remote Code Execution outside sandbox
Action: Patch
AI Analysis

Impact

A use‑after‑free flaw in Chrome's WindowDialog component allows an attacker to craft an HTML page that, if the user opens it, can execute arbitrary code beyond the browser sandbox. The vulnerability is a classic memory‑corruption issue (CWE-416) that enables remote code execution.

Affected Systems

All users of Google Chrome versions prior to 154.0.8037.57 running the stable channel are vulnerable. The flaw exists in the Desktop WebView component used by the browser.

Risk and Exploitability

With a CVSS score of 9.6, this vulnerability attains critical severity. Although the EPSS score is not publicly available, the lack of listing in the CISA KEV catalog does not diminish the potential impact. A remote attacker can exploit the flaw through social engineering, delivering a crafted web page that, when visited, triggers the use‑after‑free and executes code outside the browser sandbox.

Generated by OpenCVE AI on September 29, 2026 at 23:47 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Install the latest stable version of Google Chrome (154.0.8037.57 or later) immediately.
  • If an immediate upgrade is not possible, block or disable the affected feature through Chrome policies or by avoiding untrusted web content.
  • Maintain an update policy to ensure Chrome is kept current with security releases.

Generated by OpenCVE AI on September 29, 2026 at 23:47 UTC.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Debian DSA Debian DSA DSA-6513-1 chromium security update
History

Thu, 08 Oct 2026 12:15:00 +0000

Type Values Removed Values Added
Title Remote Code Execution via Use-After‑Free in Chrome WindowDialog chromium-browser: Use after free in WindowDialog
References
Metrics threat_severity

None

 threat_severity

Important

Wed, 30 Sep 2026 16:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

Wed, 30 Sep 2026 00:15:00 +0000

Type Values Removed Values Added
Title Remote Code Execution via Use-After‑Free in Chrome WindowDialog

Tue, 29 Sep 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome

Tue, 29 Sep 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Tue, 29 Sep 2026 17:45:00 +0000

Type Values Removed Values Added
Description Use after free in WindowDialog in Google Chrome prior to 154.0.8037.57 allowed a remote attacker leveraging social engineering to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)
Weaknesses CWE-416
References

Subscriptions

Google Chrome
cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-09-30T03:55:57.359Z

Reserved: 2026-09-22T05:10:37.308Z

Link: CVE-2026-95356

cve-icon Vulnrichment

Updated: 2026-09-29T18:07:29.701Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-29T18:17:28.647

Modified: 2026-09-30T16:25:44.097

Link: CVE-2026-95356

cve-icon Redhat

Severity : Important

Publid Date: 2026-09-29T17:31:37Z

Links: CVE-2026-95356 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-30T00:00:13Z

Weaknesses