CVE-2025-67316 is a vulnerability identified in the realme Internet browser version 45.13.4.1, which is integrated with the HeyTap/ColorOS browser environment. The issue is classified under CWE-79, indicating a cross-site scripting (XSS) flaw that enables remote attackers to execute arbitrary code by crafting a malicious webpage. When a user visits this webpage, the vulnerability can be exploited to run unauthorized scripts within the browser context, potentially compromising user data or browser integrity. The CVSS 3.1 base score is 5.4, reflecting a medium severity level, with an attack vector of network (remote), low attack complexity, no privileges required, but requiring user interaction (visiting the malicious page). The scope remains unchanged, and the impact affects confidentiality and integrity to a limited extent, with no availability impact. No patches or fixes have been published yet, and there are no known exploits in the wild. This vulnerability is significant because realme devices are widely used in various markets, including Europe, and the built-in browser is a common attack surface. The lack of a patch increases the risk window, and attackers could leverage social engineering to lure users to malicious sites. The vulnerability does not require elevated privileges, making it easier to exploit if users are tricked into visiting the crafted webpage. However, the need for user interaction and the limited impact on availability reduce the overall severity. The vulnerability highlights the importance of secure coding practices in embedded browsers and the risks posed by integrated browser components in mobile devices.

For European organizations, the primary impact of CVE-2025-67316 lies in the potential compromise of user confidentiality and integrity through arbitrary code execution within the browser context. This could lead to theft of sensitive information, session hijacking, or unauthorized actions performed on behalf of the user. While the vulnerability does not directly affect system availability, the breach of confidentiality and integrity can have downstream effects such as data leaks, unauthorized access to corporate resources, or lateral movement within networks if attackers gain footholds via compromised devices. Organizations with employees using realme devices for work or BYOD policies are at risk, especially if these devices access corporate web applications or sensitive data. The absence of patches means the vulnerability remains exploitable, increasing the risk exposure. Additionally, the reliance on user interaction (visiting a malicious webpage) means phishing or social engineering campaigns could be effective attack vectors. European organizations in sectors with high data sensitivity, such as finance, healthcare, and government, could face reputational damage and regulatory consequences if exploited. The impact is mitigated somewhat by the medium severity rating and the requirement for user interaction, but the widespread use of realme devices in Europe necessitates vigilance.

1. Educate users about the risks of visiting untrusted or suspicious websites, emphasizing caution with links received via email, messaging apps, or social media. 2. Implement network-level protections such as web filtering and DNS filtering to block access to known malicious domains or suspicious URLs. 3. Encourage the use of alternative, more secure browsers on realme devices until a patch is released. 4. Monitor for updates from realme and HeyTap/ColorOS vendors and apply patches promptly once available. 5. Employ endpoint detection and response (EDR) solutions capable of detecting anomalous browser behaviors indicative of exploitation attempts. 6. For organizations with BYOD policies, consider restricting or controlling the use of vulnerable browsers through mobile device management (MDM) solutions. 7. Conduct phishing awareness campaigns tailored to the threat of malicious webpages exploiting browser vulnerabilities. 8. Regularly audit and review device inventories to identify and track realme devices running the affected browser version. 9. Use browser security settings to disable or limit JavaScript execution where feasible, reducing the attack surface. 10. Collaborate with cybersecurity information sharing groups to stay informed about emerging exploit techniques related to this vulnerability.