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Google Chrome CVE-2026-87643

| EUVDEUVD-2026-74358 CRITICAL
Integer Overflow or Wraparound (CWE-190)
2026-09-09 Chrome GHSA-8xvf-47f3-jhc3
9.6
CVSS 3.1 · Vendor: Chrome
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Severity by source

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

Remote, unauthenticated, victim must open a page (UI:R); AC:H because a reliable GPU sandbox escape requires chaining/heap grooming; S:C and C/I/A:H reflect code execution beyond the sandbox.

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:N/PR:N/UI:P/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
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
Analysis Generated
Sep 09, 2026 - 14:35 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
CRITICAL 9.6

DescriptionCVE.org

Integer overflow in GPU in Google Chrome on on Android prior to 153.0.8010.36 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

AnalysisAI

Sandbox-escape remote code execution in Google Chrome for Android before 153.0.8010.36 arises from an integer overflow in the GPU process, letting a remote attacker who lures a victim to a crafted HTML page potentially run arbitrary code outside the renderer sandbox. Fixed in the same 153.0.8010.36 Stable Channel release that addressed several other GPU/media memory-safety bugs; no public exploit identified at time of analysis. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Delivery
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Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires the victim to open an attacker-controlled HTML page in a vulnerable Chrome for Android build (<153.0.8010.36) - this is the UI:R user interaction in the CVSS vector, the primary limiting factor. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment Signals conflict on severity. … 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 Vendor-released patch: 153.0.8010.36 - update Google Chrome on Android to 153.0.8010.36 or later via Google Play / Chrome's built-in updater (referenced in the Chrome Releases advisory 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, issue urgent security notification to all Android users directing installation of Google Chrome version 153.0.8010.36 Stable Channel or later via Google Play; for MDM-managed environments, immediately push mandatory update to all enrolled Android devices. …

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CVE-2026-87643 vulnerability details – vuln.today

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