CVE-2022-39914 is a vulnerability identified in Samsung Mobile devices affecting the DisplayManagerService component prior to Android T (Android 13). This vulnerability is categorized under CWE-200, which involves the exposure of sensitive information to unauthorized actors. Specifically, the flaw allows a local attacker—meaning someone with physical or local access to the device—to retrieve information about connected DLNA (Digital Living Network Alliance) devices. DLNA is a standard used for sharing digital media between multimedia devices, and the information exposed could include device identifiers, network details, or other metadata that is typically intended to be restricted. The vulnerability arises because the DisplayManagerService does not properly restrict access to this information, allowing unauthorized local users to query and obtain it. Although the exact affected versions are unspecified, the issue impacts Samsung Mobile devices running Android versions prior to Android 13. There are no known exploits in the wild reported, and no official patches have been linked yet. The vulnerability does not require network access or remote exploitation, but it does require local access to the device. User interaction beyond local access is not explicitly required. The exposure of DLNA device information could potentially aid attackers in reconnaissance or lateral movement within a local network environment, especially in scenarios where the attacker has temporary physical access to the device or has compromised a user session locally.

For European organizations, this vulnerability presents a moderate risk primarily in environments where Samsung Mobile devices are widely used and where local access to devices could be obtained by malicious insiders or attackers with physical proximity. The exposure of connected DLNA device information could facilitate further targeted attacks by revealing networked multimedia devices and their configurations, potentially aiding in network mapping or identifying additional attack vectors. In sectors such as media, telecommunications, or enterprises with sensitive multimedia infrastructure, this could lead to privacy breaches or unauthorized data access. However, since the vulnerability requires local access and does not allow remote exploitation, the overall impact on large-scale network compromise is limited. The confidentiality of device-related information is compromised, but integrity and availability are not directly affected. The lack of known exploits reduces immediate risk, but the vulnerability could be leveraged in multi-stage attacks or combined with other vulnerabilities. Organizations with Bring Your Own Device (BYOD) policies or shared device environments may face increased exposure. Additionally, in regulated sectors such as finance or healthcare, any unauthorized information disclosure could have compliance implications under GDPR or other data protection frameworks.

To mitigate this vulnerability effectively, European organizations should implement strict physical security controls to prevent unauthorized local access to Samsung Mobile devices. Device usage policies should restrict access to trusted personnel only. Enforcing device encryption and strong authentication mechanisms (PIN, biometrics) can reduce the risk of unauthorized local access. Organizations should monitor for unusual local device access or attempts to query device services. Although no official patch is currently linked, organizations should stay vigilant for Samsung security updates addressing this issue and apply them promptly once available. Network segmentation can limit the impact of any information gathered about DLNA devices by isolating multimedia devices from critical infrastructure. Disabling or restricting DLNA services on devices where not needed can reduce the attack surface. For environments with shared devices, consider implementing mobile device management (MDM) solutions to enforce security policies and monitor device configurations. User training to raise awareness about the risks of local device access and the importance of securing mobile devices is also recommended. Finally, organizations should conduct regular security assessments and penetration testing to identify any exploitation attempts or related vulnerabilities.