CVE-2025-20806 is a use-after-free vulnerability classified under CWE-416 found in the dpe component of MediaTek chipsets MT6899, MT6991, and MT8793, which are integrated into devices running Android 16.0. The vulnerability arises from improper handling of memory, where a previously freed memory region is accessed, leading to memory corruption. This flaw can be exploited locally by an attacker who already possesses System-level privileges on the device, enabling them to escalate their privileges further, potentially to root or kernel-level access. Notably, exploitation does not require any user interaction, increasing the risk in environments where attackers have some foothold. The vulnerability does not have a CVSS score assigned yet, but a patch (ALPS10114835) has been released to address the issue. The absence of known exploits in the wild suggests it is not actively weaponized, but the potential for privilege escalation makes it a critical concern. The flaw compromises the integrity and confidentiality of the affected systems by allowing attackers to execute arbitrary code or manipulate system processes with elevated privileges. This vulnerability is particularly relevant for organizations relying on MediaTek-powered Android devices, as it could be leveraged to bypass security controls and gain unauthorized access to sensitive data or system functions.

For European organizations, the primary impact of CVE-2025-20806 lies in the potential for local privilege escalation on devices using the affected MediaTek chipsets. This can lead to unauthorized access to sensitive information, manipulation of device functions, and possible deployment of persistent malware with elevated privileges. Given the widespread use of Android devices in enterprise environments for communication, authentication, and mobile computing, exploitation could undermine device security and trustworthiness. The vulnerability could also facilitate lateral movement within corporate networks if compromised devices are connected to internal systems. Additionally, sectors such as finance, healthcare, and government, which often use mobile devices for secure communications and data access, may face increased risks of data breaches or operational disruption. The lack of user interaction requirement means that once an attacker gains System privileges, they can escalate without alerting the user, increasing stealth and impact. Overall, the vulnerability threatens confidentiality, integrity, and availability of mobile endpoints critical to European organizations.

Organizations should immediately verify whether their mobile device inventory includes devices with MediaTek MT6899, MT6991, or MT8793 chipsets running Android 16.0. Deploy the patch identified as ALPS10114835 as soon as it becomes available from device manufacturers or carriers. Implement strict access controls to limit the initial acquisition of System privileges on devices, such as enforcing strong authentication, device encryption, and mobile device management (MDM) policies. Monitor devices for unusual privilege escalations or suspicious activity indicative of exploitation attempts. Employ endpoint detection and response (EDR) solutions capable of detecting memory corruption or privilege escalation behaviors on mobile devices. Educate users about the risks of installing untrusted applications or rooting devices, which could facilitate initial privilege acquisition. Coordinate with vendors and carriers to ensure timely updates and security advisories are received and acted upon. For high-risk environments, consider restricting the use of affected devices until patched. Finally, maintain an inventory of device hardware and software versions to enable rapid vulnerability assessment and response.