EUVD-2026-66012
GHSA-c76r-4qfw-4w98
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Sandbox escape implies scope change (S:C); 'potentially' language and Chromium Medium rating indicate higher attack complexity (AC:H) than the vendor CVSS assigns.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionCVE.org
Improper input validation in Media in Google Chrome 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: Medium)
AnalysisAI
Remote code execution in Google Chrome prior to 152.0.7977.65 stems from improper input validation in the browser's Media component, enabling a remote attacker to potentially execute arbitrary code outside the sandbox when a user visits a crafted HTML page. The vulnerability carries a CVSS base score of 8.8, affects all desktop Chrome builds below 152.0.7977.65 across Windows, macOS, and Linux, and is classified under CWE-20. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The sole prerequisite for exploitation is that a target user visits an attacker-controlled or compromised web page containing crafted media content - no authentication is required and no special server-side configuration is needed on the attacker's infrastructure. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.8 vector (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) positions this as a high-severity, network-reachable flaw requiring only a single user interaction with full CIA impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker establishes a web page embedding a crafted HTML document with specially constructed media content designed to trigger the improper input validation flaw in Chrome's Media component. A user on a vulnerable Chrome version visits the page - via a phishing link, malicious advertisement, or compromised site - causing the malformed media to corrupt renderer process memory, which the attacker chains into a sandbox escape primitive to execute arbitrary code in the context of the host operating system. … |
| Remediation | Update Google Chrome to version 152.0.7977.65 or later, the vendor-released patch confirmed in the stable channel update advisory at https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, audit Chrome version deployment across all endpoints to identify systems running versions prior to 152.0.7977.65 and assess organizational scope. …
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Same weakness CWE-20 – Improper Input Validation
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External POC / Exploit Code
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