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CVE-2025-10585

CRITICAL9.8
CISA KEV

Published 2025-09-24 · Updated 2026-07-14 · Source chrome-cve-admin@google.com

Summary

CVE-2025-10585 is a critical-severity (CVSS 9.8) vulnerability in Google Chromium V8. CISA added it to the Known Exploited Vulnerabilities catalog on September 23, 2025, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by October 14, 2025. CISA does not currently list it as used in ransomware campaigns. Google has 76 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.

All 76 known-exploited Google vulnerabilities →

Description

Type confusion in V8 in Google Chrome prior to 140.0.7339.185 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-843CWE-843

CISA Known-Exploited Vulnerability

Product: Google — Chromium V8

Name: Google Chromium V8 Type Confusion Vulnerability

Date added: 2025-09-23 · Due: 2025-10-14

Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

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