#VU114893 Improperly implemented security check for standard in Google Chromium - CVE-2025-9866
Published: September 2, 2025 / Updated: September 6, 2025
Vulnerability identifier: #VU114893
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2025-9866
CWE-ID: CWE-358
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Google Chromium
Google Chromium
Software vendor:
Google
Description
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to incorrect implementation in Extensions in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and gain access to sensitive information.
Remediation
Install update from vendor's website.