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Actively exploitedCVSS 8.8 · HIGH

CVE-2026-85046Remote Code Execution in Google Chrome and Chromium V8

Google Chromium V8 contains a type confusion vulnerability that allows a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

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Analysis

Esta vulnerabilidad de confusión de tipos en el motor V8 permite a un atacante remoto ejecutar código arbitrario dentro del sandbox del navegador mediante una página HTML maliciosa. El fallo está siendo explotado activamente en dispositivos reales y afecta a Chrome, Edge y otros navegadores basados en Chromium. Es imperativo actualizar el software cliente y los entornos de pruebas para evitar el compromiso del equipo.

Relevant roles

FrontendJavascriptciberseguridadQaTesting

Severity

Score: 8.8(HIGH)
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AV: NETWORK
AC: LOW
PR: NONE
UI: REQUIRED
S: UNCHANGED
C: HIGH
I: HIGH
A: HIGH
Weakness (CWE): CWE-843

CISA KEV

Added to KEV: 2026-09-04
Federal patch deadline: 2026-09-18
Known ransomware use: Unknown
Required action

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

EPSS

Probability of exploitation (next 30 days): 0.0046 (0.5%)
Percentile: 38.4%
EPSS: 2026-09-04

Affects

google:chrome

Technical description

Type confusion in V8 in Google Chrome prior to 152.0.7977.82 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

Published: 9/3/2026, 8:17:24 PM
Last modified: 9/4/2026, 7:03:29 PM

References

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