CVE-2025-21001 is a medium-severity vulnerability classified under CWE-284 (Improper Access Control) affecting Samsung Mobile Devices. The flaw exists in the LeAudioService component prior to the SMR (Security Maintenance Release) July 2025 Release 1. This vulnerability allows a local attacker—meaning someone with physical or local access to the device—to stop the broadcasting of Auracast, a technology related to Bluetooth audio broadcasting. The CVSS 3.1 base score is 6.2, reflecting a medium impact primarily due to the integrity impact (I:H) without affecting confidentiality or availability. The attack vector is local (AV:L), requiring no privileges (PR:N) and no user interaction (UI:N), which means an attacker can exploit this without elevated permissions or user consent once local access is obtained. The scope is unchanged (S:U), indicating the vulnerability affects only the vulnerable component and does not extend to other system components. The vulnerability does not appear to have known exploits in the wild yet, and no patches or fixes have been linked at the time of publication. The improper access control allows unauthorized stopping of Auracast broadcasts, which could disrupt audio streaming services relying on this technology, potentially impacting user experience and device functionality related to Bluetooth audio sharing.

For European organizations, especially those relying on Samsung mobile devices for communication and collaboration, this vulnerability could disrupt Auracast-based audio broadcasting services. While the confidentiality and availability of the device are not directly impacted, the integrity of audio streaming is compromised, which could affect real-time communications in professional or public environments using Auracast technology. This may be particularly relevant for sectors such as media, event management, education, and public transportation where Auracast could be deployed for audio dissemination. The local attack vector limits the risk to scenarios where an attacker has physical or local access to the device, reducing the likelihood of remote exploitation. However, in environments with shared or publicly accessible devices, the risk of misuse increases. The lack of known exploits suggests limited immediate threat, but the absence of patches means the vulnerability remains exploitable if discovered by attackers. Organizations should be aware of this risk in their device management and physical security policies.

To mitigate this vulnerability, organizations should prioritize updating Samsung mobile devices to the SMR July 2025 Release 1 or later once patches become available. Until then, restricting physical access to devices is critical to prevent local exploitation. Device management policies should enforce strong physical security controls, including secure storage and supervised use in public or shared environments. Additionally, disabling Auracast broadcasting on devices where it is not needed can reduce the attack surface. Monitoring device behavior for unexpected stoppage of Auracast broadcasts may help detect exploitation attempts. IT teams should also educate users about the risks of local device access and encourage reporting of unusual device behavior. Finally, organizations should maintain an inventory of affected devices and track firmware updates from Samsung to ensure timely patch deployment.