CVE-2025-0246 is classified as a medium-severity vulnerability affecting Mozilla Firefox. This vulnerability allows an attacker to spoof the address bar when using an invalid protocol scheme. Notably, this issue only impacts Android operating systems, leaving other platforms unaffected. The vulnerability was addressed in Firefox version 134, emphasizing the urgency for users on vulnerable versions to update their software.
The CVSS score for this vulnerability is 6.5, indicating a medium severity level. Organizations should consider the risk associated with potential exploitation, especially since the attack vector is network-based and requires no user interaction. Given the low attack complexity, this vulnerability presents a real-world risk that could lead to unauthorized access for attackers.
It is crucial for defenders to take immediate action to patch this vulnerability. Although it has not been confirmed that any exploits are publicly available, the nature of the vulnerability necessitates proactive remediation efforts to safeguard against possible future exploitation.
Organizations should prioritize patching immediately. Regular updates and security assessments can help mitigate risks associated with vulnerabilities like CVE-2025-0246.
Vulnerability Details
The CVE description states: "When using an invalid protocol scheme, an attacker could spoof the address bar. Note: This issue only affected Android operating systems. Other operating systems are unaffected. This issue is a different issue from CVE-2025-0244. This vulnerability was fixed in Firefox 134." The CVSS score indicates a medium severity with a base score of 6.5, reflecting the potential impact on confidentiality and integrity.
Technical Analysis
The root cause of CVE-2025-0246 involves the invalid protocol scheme used within the Firefox browser on Android devices. When users navigate to URLs with these schemes, the address bar may display manipulated information, misleading users about the actual destination. Attackers may exploit this vulnerability through network access without requiring any privileges or user interaction.
The attack complexity is low, allowing attackers to easily leverage this vulnerability in environments where users are not vigilant about URL verification. The attack vector is network-based, meaning that an attacker does not need direct access to the user's device. Furthermore, the integrity of displayed URLs can be compromised, but there is no availability impact associated with this vulnerability.
Risk & Impact Analysis
Risk to organizations includes the potential for phishing attacks or the execution of malicious activities that could compromise sensitive user information. The ability to spoof the address bar undermines user trust and places organizations at risk of reputational damage and financial loss.
With a CVSS score of 6.5, organizations should evaluate their exposure and implement necessary controls to mitigate possible impacts. Users on Android devices must upgrade to Firefox version 134 or later to eliminate this risk. The urgency of addressing this vulnerability cannot be overstated, especially in environments that rely heavily on mobile access.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of Mozilla Firefox include all versions prior to 134. Organizations should ensure that they are using the latest version to mitigate this vulnerability.
Mitigation & Remediation
To mitigate the risk associated with CVE-2025-0246, organizations should update their installation of Mozilla Firefox to version 134 or later. If immediate patching is not possible, organizations can implement additional network controls to limit exposure to potential attacks.
Regular security assessments, such as application security assessments, can help identify vulnerabilities in existing systems and ensure compliance with security best practices.
Detection Guidance
Organizations should monitor logs for any indicators of unauthorized access or unusual patterns that might suggest exploitation attempts. Behavioral anomalies in user activities, especially related to navigation and URL access, should be flagged for further investigation.
AppSecure Threat Intelligence Insight
CVE-2025-0246 reflects ongoing trends in mobile security vulnerabilities, particularly concerning how attackers exploit user trust in interface elements such as address bars. Security teams should consider implementing broader security measures, including user education on recognizing spoofed URLs.
Moreover, organizations should develop a robust vulnerability management program to continuously assess and improve their security posture against evolving threats.
Implementing proactive measures and maintaining awareness of current vulnerabilities can significantly reduce the risk of exploitation and enhance overall security.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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