CVE-2025-58479 is an out-of-bounds read vulnerability classified under CWE-125, found in the libimagecodec.quram.so component of Samsung Mobile devices. This vulnerability exists in versions prior to the SMR (Security Maintenance Release) December 2025 Release 1. The flaw allows remote attackers to cause the device to read memory outside the allocated buffer boundaries when processing certain image data. This can lead to unauthorized disclosure of sensitive information stored in memory, potentially including parts of the device’s memory that should remain inaccessible. The vulnerability is exploitable remotely without requiring any privileges, but it does require user interaction, such as opening or previewing a maliciously crafted image file. The CVSS v3.1 base score is 4.3, indicating a medium severity level, with the vector AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N. This means the attack can be launched over the network with low complexity, no privileges, but requires user interaction, and impacts confidentiality only. There are no known exploits in the wild and no patches have been released at the time of publication. The vulnerability’s impact is limited to information disclosure without affecting system integrity or availability. Samsung Mobile devices are widely used globally, including in Europe, making this a relevant concern for European organizations relying on these devices for business or personal use. The vulnerability highlights the importance of secure image processing libraries and the risks posed by malformed media files. Organizations should monitor Samsung’s security advisories for patches and consider interim mitigations to reduce exposure.

For European organizations, the primary impact of CVE-2025-58479 is the potential leakage of sensitive information from affected Samsung Mobile devices. This could include personal data, credentials, or other confidential information residing in device memory. While the vulnerability does not allow code execution or denial of service, the confidentiality breach could facilitate further attacks such as social engineering or targeted phishing. Organizations with employees using Samsung Mobile devices, especially in sectors like finance, government, or critical infrastructure, may face increased risk of data exposure. The requirement for user interaction means that phishing or malicious content delivery could be vectors for exploitation. The lack of known exploits reduces immediate risk, but the widespread use of Samsung devices in Europe means the attack surface is significant. Failure to address this vulnerability could undermine trust in mobile device security and compliance with data protection regulations such as GDPR if sensitive data is exposed.

To mitigate CVE-2025-58479, European organizations should implement several practical steps beyond generic advice: 1) Educate users to avoid opening or previewing images from untrusted or unknown sources, especially in emails or messaging apps. 2) Deploy mobile device management (MDM) solutions to enforce security policies and restrict risky behaviors. 3) Monitor Samsung’s official security advisories closely and prioritize installation of the SMR December 2025 Release 1 or later updates that address this vulnerability as soon as they become available. 4) Use endpoint protection tools capable of detecting anomalous behavior related to image processing or memory access on mobile devices. 5) Consider network-level filtering to block or quarantine suspicious image files before they reach end users. 6) Conduct regular security awareness training emphasizing the risks of malicious media files. 7) For high-risk environments, evaluate the feasibility of restricting Samsung Mobile device usage or isolating them from sensitive networks until patched. These targeted mitigations help reduce the likelihood of exploitation and limit potential data leakage.