CVE-2025-49755 is a vulnerability classified under CWE-451, indicating a user interface misrepresentation issue in Microsoft Edge for Android version 1.0.0. This flaw allows an unauthorized attacker to conduct spoofing attacks by manipulating the browser's UI to misrepresent critical information to the user. The vulnerability is exploitable remotely over a network without requiring any privileges, but it does require user interaction, such as clicking on a crafted link or visiting a malicious website. The misrepresentation can cause users to trust fraudulent content, potentially leading to phishing or social engineering attacks. The CVSS 3.1 base score is 4.3 (medium), reflecting that while confidentiality and availability are not impacted, the integrity of displayed information can be compromised. No known exploits are currently in the wild, and no patches have been released yet. The vulnerability was reserved in June 2025 and published in August 2025. The attack vector is network-based with low complexity and no privileges required, but user interaction is necessary. This vulnerability highlights the risks of UI spoofing in mobile browsers, which can undermine user trust and facilitate further attacks.

For European organizations, this vulnerability could enable attackers to conduct phishing or social engineering campaigns by spoofing critical UI elements in Microsoft Edge for Android. This may lead to credential theft, unauthorized transactions, or the installation of malware if users are deceived by the spoofed interface. Although the vulnerability does not directly compromise data confidentiality or system availability, the integrity of user decisions based on UI information is at risk. Organizations relying on Microsoft Edge for Android for secure browsing or internal applications may face increased risk of targeted attacks. The impact is particularly relevant for sectors with high mobile workforce usage, such as finance, government, and critical infrastructure. The lack of known exploits reduces immediate risk, but the potential for future exploitation necessitates proactive measures. The medium severity suggests that while the threat is not critical, it should not be ignored, especially in environments where user trust in browser UI is essential for security.

1. Monitor Microsoft’s security advisories closely and apply patches immediately once available to address CVE-2025-49755. 2. Educate users on recognizing suspicious UI behavior and the risks of clicking unknown or untrusted links, especially on mobile devices. 3. Implement network-level protections such as web filtering and intrusion detection systems to block access to known malicious sites that could exploit this vulnerability. 4. Encourage the use of multi-factor authentication (MFA) to reduce the impact of credential theft resulting from spoofing attacks. 5. Consider deploying mobile device management (MDM) solutions to enforce browser updates and restrict installation of unapproved applications. 6. Conduct phishing simulation exercises to raise awareness about UI spoofing and social engineering tactics. 7. Review and tighten browser security settings, disabling features that may increase attack surface if feasible. 8. For critical applications, consider alternative browsers or hardened configurations until the vulnerability is patched.