CVE-2026-14256 in ELAN TrackPoint Driver
Summary
by MITRE • 08/13/2026
ELAN reported a potential out-of-bounds write vulnerability in the ELAN TrackPoint driver that, under certain circumstances, could allow a local authenticated user to cause a system crash.
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Analysis
by VulDB Data Team • 08/13/2026
The reported vulnerability involves an out-of-bounds write condition within the ELAN TrackPoint driver component, which serves as a critical input device driver for pointing devices commonly found on laptops and notebooks. This type of flaw represents a fundamental memory safety issue that can potentially lead to system instability or more severe consequences when exploited. The vulnerability specifically affects systems running the ELAN TrackPoint driver software, which interfaces with hardware components to process mouse movements and clicks through the trackpoint mechanism.
The technical nature of this out-of-bounds write vulnerability stems from improper input validation within the driver's memory management routines. When legitimate user input is processed through the TrackPoint device, the driver fails to adequately bounds-check array indices or buffer sizes before writing data to memory locations. This condition allows an authenticated local user to manipulate driver operations in such a way that memory corruption occurs beyond allocated boundaries. The flaw typically manifests when specific sequences of input events are processed by the driver, potentially through crafted input patterns or abnormal usage scenarios that trigger the vulnerable code path.
From an operational perspective, this vulnerability presents a significant risk to system stability and availability within environments where the ELAN TrackPoint driver is deployed. Local authenticated users can exploit this condition to cause system crashes or blue screen errors, effectively disrupting normal operations and potentially leading to data loss or service interruptions. The impact extends beyond simple denial of service as memory corruption could theoretically provide a foundation for more sophisticated exploitation techniques if combined with other vulnerabilities. Organizations relying on trackpoint-enabled devices in corporate environments face particular risk since the vulnerability can be triggered by any authenticated user with local access to affected systems.
The vulnerability aligns with CWE-787, which specifically addresses out-of-bounds writes in software implementations, and demonstrates characteristics consistent with ATT&CK technique T1068, which involves local privilege escalation through system exploitation. This classification indicates that the flaw represents a legitimate attack surface that adversaries could potentially leverage to gain unauthorized access to system resources. System administrators should prioritize patch management for affected systems while implementing monitoring solutions to detect potential exploitation attempts. The recommended mitigation strategy includes immediate deployment of vendor-provided security patches, along with network segmentation and access controls to limit local user privileges where possible.
Additional considerations include the potential for this vulnerability to be chained with other exploits or used as a foothold for further system compromise. Organizations should conduct comprehensive vulnerability assessments across their entire fleet of affected devices and implement proper logging mechanisms to track driver activity and potential exploitation attempts. The security community should monitor for any reports of successful exploitation in the wild, as such incidents could indicate the need for more aggressive remediation measures or emergency patch deployments.