CVE-2025-62223 is a vulnerability classified under CWE-451, indicating a User Interface (UI) misrepresentation issue within the Chromium-based Microsoft Edge browser on iOS devices. The flaw allows an unauthorized attacker to perform spoofing attacks over a network by manipulating the UI to misrepresent critical information. This can deceive users into believing they are interacting with legitimate content or trusted sources when they are not. The vulnerability requires no privileges and no prior authentication, but it does require user interaction, such as clicking on a crafted link or visiting a malicious website. The CVSS 3.1 base score is 4.3 (medium severity), reflecting that the attack vector is network-based with low complexity and no privileges required, but user interaction is necessary. The impact primarily affects integrity, as the attacker can mislead users, potentially causing them to disclose sensitive information or perform unintended actions. Confidentiality and availability impacts are negligible. The vulnerability is specific to Microsoft Edge on iOS version 1.0.0.0, with no patches currently available and no known exploits in the wild. This UI spoofing vulnerability can be leveraged in phishing campaigns or social engineering attacks to increase their effectiveness by presenting falsified UI elements that appear legitimate to the user.

For European organizations, this vulnerability poses a risk mainly through social engineering and phishing attacks that exploit the UI misrepresentation to deceive users. Organizations with employees using Microsoft Edge on iOS devices for accessing corporate resources or sensitive information are at risk of credential theft, unauthorized data disclosure, or executing unintended commands. The impact on confidentiality is limited but not negligible, as spoofed UI elements can trick users into submitting sensitive data. Integrity is more significantly affected because users may be misled into trusting malicious content. Availability is not impacted. The threat is heightened in sectors with high mobile device usage and reliance on browser-based applications, such as finance, government, and healthcare. The lack of a patch increases exposure time, and the network-based attack vector means attackers can target users remotely. However, the requirement for user interaction limits automated exploitation. Overall, the vulnerability can facilitate targeted phishing campaigns that undermine user trust and security posture.

To mitigate CVE-2025-62223, European organizations should implement several specific measures beyond generic advice: 1) Educate users about the risk of UI spoofing and encourage vigilance when interacting with links or unfamiliar websites, especially on mobile devices. 2) Restrict or monitor network traffic to known malicious domains using advanced threat intelligence and DNS filtering to reduce exposure to crafted attack sites. 3) Enforce the use of multi-factor authentication (MFA) to reduce the impact of credential theft resulting from spoofing attacks. 4) Deploy mobile device management (MDM) solutions to control browser configurations and restrict installation of unapproved apps or extensions. 5) Monitor for updates from Microsoft and prioritize patching as soon as a fix becomes available. 6) Use endpoint detection and response (EDR) tools to identify suspicious browser behavior indicative of spoofing or phishing attempts. 7) Encourage the use of alternative browsers or platforms if possible until the vulnerability is patched. These targeted actions can reduce the risk and impact of this UI spoofing vulnerability in Microsoft Edge on iOS.