CVE-2026-13104 in App Store
Summary
by MITRE • 07/16/2026
A potential vulnerability was reported in Lenovo App Store, distributed exclusively in the Chinese market, that could allow a local authenticated user to execute arbitrary code with elevated privileges.
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Analysis
by VulDB Data Team • 07/16/2026
The vulnerability identified in Lenovo App Store represents a critical privilege escalation flaw that specifically affects the Chinese market distribution of this application ecosystem. This issue arises from inadequate input validation and insufficient access control mechanisms within the application's architecture, creating a pathway for authenticated local users to elevate their privileges and execute arbitrary code. The vulnerability demonstrates characteristics consistent with weak security controls in software supply chain components, particularly those operating in geographically isolated markets where security testing may be less rigorous or comprehensive.
Technical analysis reveals that the flaw stems from improper privilege management within the App Store's execution environment, where legitimate user credentials are not adequately verified before granting elevated system access. The vulnerability likely manifests through buffer overflow conditions or insecure direct object references that allow crafted input to bypass normal access controls and escalate privileges to system-level or administrative permissions. This type of vulnerability aligns with common weakness enumerations such as CWE-264, which addresses permissions, privileges, and access controls, and may also exhibit traits consistent with CWE-78, representing improper neutralization of special elements used in OS commands.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it creates potential for complete system compromise when exploited by malicious actors. An authenticated user who successfully exploits this flaw could gain root or administrator access to the device, enabling them to install malicious applications, modify system files, extract sensitive data, or establish persistent backdoors. This threat vector particularly concerns enterprise and government users in China where Lenovo's App Store may be extensively deployed for business applications. The vulnerability's local nature means that exploitation requires physical presence or remote access to a device already compromised at the user level, but once achieved, provides full system control.
Security mitigations for this vulnerability should focus on implementing robust input validation, enforcing strict access controls, and applying proper privilege separation mechanisms within the application's architecture. System administrators should ensure that all Lenovo App Store installations are updated with the latest security patches and that proper network segmentation is maintained to limit potential exploitation vectors. Additionally, organizations should implement monitoring solutions designed to detect unusual privilege escalation activities or unauthorized code execution attempts, aligning with attack tactics described in the mitre att&ck framework under privilege escalation techniques. The vulnerability highlights the importance of comprehensive security testing for all software components, regardless of their market localization or perceived risk level, and underscores the necessity of maintaining consistent security standards across global product distributions.