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Google Chrome EUVDEUVD-2026-74400

| CVE-2026-87616 HIGH
Improper Initialization (CWE-665)
2026-09-09 Chrome GHSA-j7wv-3jrw-7hww
8.3
CVSS 3.1 · Vendor: Chrome
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Severity by source

Vendor (Chrome) PRIMARY
8.3 HIGH
AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
vuln.today AI
8.3 HIGH

AC:H reflects mandatory pre-compromised renderer precondition; S:C and C/I/A:H reflect full sandbox-escape impact on host OS.

3.1 AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
4.0 AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Primary rating from Vendor (Chrome).

CVSS VectorVendor: Chrome

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

5
Metadata Corrected
Sep 09, 2026 - 16:40 vuln.today
tag: Microsoft removed
Analysis Generated
Sep 09, 2026 - 15:43 vuln.today
Patch available
Sep 09, 2026 - 01:03 EUVD
CVE Published
Sep 09, 2026 - 00:09 cve.org
UNKNOWN (no severity yet)
CVE Published
Sep 09, 2026 - 00:09 cve.org
HIGH 8.3

DescriptionCVE.org

Improper initialization in Views in Google Chrome on on Windows prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

AnalysisAI

Sandbox escape via improper initialization (CWE-665) in Google Chrome's Views UI framework on Windows, prior to version 153.0.8010.36, can lead to arbitrary code execution outside the browser sandbox. The attack is chained: an adversary must first compromise the renderer process through a separate vulnerability, then leverage social engineering to trigger the Views initialization flaw, elevating from renderer-level code execution to full host OS access. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Recon
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Delivery
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Exploit
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Install
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C2
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Execute
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Impact
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Vulnerability AssessmentAI

Exploitation Two preconditions must hold simultaneously: (1) the attacker must have already achieved code execution inside the Chrome renderer process via a separate vulnerability - this is not a standalone flaw, it is a sandbox-escape component of a multi-stage chain; and (2) social engineering must succeed in causing the victim to interact with the crafted HTML page that triggers the Views improper initialization. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 8.3 vector (AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H) accurately captures a high-impact but genuinely complex attack path: the AC:H reflects that the adversary must already hold renderer-level code execution before this flaw is reachable, and UI:R acknowledges the social engineering requirement. … 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 Upgrade Google Chrome on Windows to version 153.0.8010.36 or later using the vendor-released patch documented at https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, scan Windows systems to identify Chrome installations prior to version 153.0.8010.36 and prioritize them for update. …

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EUVD-2026-74400 vulnerability details – vuln.today

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