CVE-2025-36912 is a vulnerability identified in the cellular modem component of the Android kernel. The flaw is due to a logic error in the modem's code, which can be triggered remotely to cause a denial of service (DoS) condition. This DoS can manifest as a device crash, reboot, or loss of cellular connectivity, effectively disrupting the affected device's availability. The vulnerability does not require any additional execution privileges, meaning an attacker does not need elevated rights on the device to exploit it. Furthermore, no user interaction is necessary, allowing exploitation without user awareness or consent. The affected product is the Android kernel, specifically the cellular modem subsystem, which is integral to mobile communication functions. Although no exploits have been reported in the wild, the vulnerability's characteristics make it a significant risk. The absence of a CVSS score means severity must be assessed based on impact and exploitability factors. The flaw's presence in the kernel level implies a broad impact surface across many Android devices, particularly those using cellular modems. The vulnerability was reserved in April 2025 and published in December 2025, indicating a recent discovery. No patches or mitigations have been linked yet, emphasizing the need for vigilance and rapid response once fixes become available.

For European organizations, this vulnerability poses a risk of widespread disruption to mobile device availability and cellular communications. Organizations relying on Android devices for critical business functions, including field operations, communications, and mobile workforce management, could experience service interruptions. The denial of service could lead to loss of connectivity, impacting emergency services, logistics, and remote work capabilities. Additionally, sectors such as finance, healthcare, and government agencies that depend on secure and reliable mobile communications may face operational degradation. The lack of required user interaction or privileges means attackers could potentially target devices en masse, increasing the scale of impact. Disruptions could also affect IoT devices and embedded systems running Android kernels with cellular modems, expanding the threat beyond traditional smartphones. The potential for cascading effects on network infrastructure and service providers exists if large numbers of devices are affected simultaneously. Overall, the vulnerability threatens confidentiality indirectly by disrupting availability and potentially integrity if devices reboot unexpectedly during critical operations.

European organizations should prioritize monitoring for updates from Google and Android device manufacturers to apply patches promptly once released. Until patches are available, network-level mitigations such as filtering or rate-limiting suspicious cellular traffic targeting modem components could reduce exposure. Deploying mobile device management (MDM) solutions to enforce security policies and monitor device health can help detect anomalies indicative of exploitation attempts. Organizations should conduct risk assessments to identify critical Android devices in their environment and consider temporary operational adjustments to reduce reliance on vulnerable devices. Collaboration with mobile network operators to share threat intelligence and coordinate defensive measures is advisable. Security teams should educate users about the risk, even though user interaction is not required, to maintain vigilance for unusual device behavior. Incident response plans should be updated to address potential mass device outages. Finally, organizations should evaluate alternative communication channels to maintain business continuity during potential disruptions.