CVE-2025-11209 is a vulnerability in the Omnibox component of Google Chrome on Android platforms prior to version 141.0.7390.54. The Omnibox is the URL bar that displays the current website address to users. Due to an inappropriate implementation, a remote attacker can craft a malicious HTML page that spoofs the Omnibox content, making it appear as if the user is visiting a legitimate or trusted website when they are not. This spoofing can be achieved without requiring any privileges or user interaction, making it a remote and easily exploitable flaw. The vulnerability primarily affects confidentiality by misleading users into trusting fraudulent websites, potentially facilitating phishing attacks or the delivery of malicious payloads. The CVSS v3.1 base score is 8.2, indicating high severity, with metrics reflecting network attack vector, low attack complexity, no privileges required, no user interaction, and high confidentiality impact but limited integrity impact and no availability impact. Although no known exploits have been reported in the wild, the potential for abuse is significant given the widespread use of Chrome on Android devices. The vulnerability is categorized under CWE-290, which relates to authentication issues, highlighting that the spoofing bypasses expected URL verification mechanisms. No official patch links are provided in the data, but updating to version 141.0.7390.54 or later is implied as the remediation. The flaw undermines user trust in browser security indicators, a critical component of safe web browsing.

For European organizations, this vulnerability poses a significant risk to user trust and security posture. Attackers exploiting this flaw can conduct sophisticated phishing campaigns by displaying fake URLs in the Omnibox, tricking employees or customers into divulging credentials, installing malware, or performing unauthorized transactions. This can lead to data breaches, financial losses, and reputational damage. Organizations relying heavily on Android devices with Chrome installed, especially in sectors like finance, healthcare, and government, are particularly vulnerable. The confidentiality of sensitive information is at high risk, while integrity and availability impacts are lower. The lack of required user interaction or privileges means attackers can exploit the vulnerability remotely and silently, increasing the threat surface. Additionally, the widespread use of Chrome on Android devices across Europe amplifies the potential scale of impact. The vulnerability could also facilitate targeted attacks against high-profile entities by leveraging social engineering based on the spoofed URL bar.

European organizations should immediately ensure all Android devices are updated to Google Chrome version 141.0.7390.54 or later, as this is the primary fix for the vulnerability. Mobile device management (MDM) solutions should be leveraged to enforce browser updates and prevent the use of outdated versions. Security awareness training must emphasize vigilance against URL spoofing and phishing attempts, instructing users to verify website legitimacy through additional means beyond the URL bar, such as checking for HTTPS certificates and domain details. Network-level protections like web filtering and anti-phishing tools can help block access to known malicious sites exploiting this vulnerability. Organizations should monitor for suspicious activities indicative of phishing campaigns or credential theft attempts. Incident response plans should be updated to address potential exploitation scenarios involving browser UI spoofing. Finally, collaboration with browser vendors and security communities is recommended to stay informed about patches and emerging threats related to this vulnerability.