EUVD-2026-66010
GHSA-fhc9-x76p-9ppr
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Sandbox escape explicitly moves execution outside the renderer's security scope, warranting S:C; AV:N/AC:L/PR:N/UI:R consistent with passive browser-based delivery.
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
3DescriptionCVE.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 outside the browser sandbox is achievable in Google Chrome prior to 152.0.7977.65 via improper input validation in the Media component, triggered by visiting a crafted HTML page. The sandbox escape aspect is the critical differentiator here - Chrome's multi-process sandbox is its primary defense-in-depth layer, so bypassing it yields native OS-level code execution under the victim's account. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The victim must actively visit an attacker-controlled or compromised web page containing crafted media content - user interaction is mandatory (UI:R per CVSS). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The NVD CVSS score of 8.8 (High) with AV:N/AC:L/PR:N/UI:R reflects a network-reachable, low-complexity attack requiring no attacker privileges, but demanding one user interaction - visiting a malicious page. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Update Google Chrome to version 152.0.7977.65 or later, which contains the vendor-released patch per the stable channel 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, inventory current Chrome versions across the organization and communicate the patch availability to all users. …
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Same weakness CWE-20 – Improper Input Validation
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External POC / Exploit Code
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