CVE-2026-20498 in MT6991
Summary
by MITRE • 08/03/2026
In geniezone, there is a possible escalation of privilege due to a missing permission check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10900493; Issue ID: MSV-6765.
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Analysis
by VulDB Data Team • 08/03/2026
The vulnerability identified in geniezone represents a critical privilege escalation flaw that stems from inadequate permission validation mechanisms within the system architecture. This weakness manifests as a missing permission check that allows unauthorized access to privileged operations, creating a dangerous pathway for malicious actors who have already compromised system-level privileges. The vulnerability specifically targets the privilege escalation mechanism and operates under the assumption that an attacker has achieved initial system-level access through other means, making it particularly concerning for environments where such initial compromise is possible.
The technical implementation of this flaw occurs at the permission validation layer where the system fails to properly verify user credentials or access rights before granting elevated privileges. This missing check creates a gap in the security model that can be exploited by adversaries who possess system-level privileges to further escalate their access rights within the operating environment. The vulnerability operates without requiring any user interaction, meaning that once an attacker has achieved the initial system privilege level, they can automatically exploit this weakness to gain higher levels of access without additional authentication or verification steps.
From an operational perspective, this vulnerability creates significant risk for organizations relying on geniezone systems as it enables local privilege escalation attacks that can potentially lead to complete system compromise. The lack of user interaction requirements makes the exploitation particularly dangerous as it can occur automatically without detection, allowing attackers to maintain persistent access and move laterally within networks. This vulnerability directly impacts the principle of least privilege enforcement and undermines the security boundaries that should prevent unauthorized escalation of privileges.
The mitigation strategies for this vulnerability should focus on implementing comprehensive permission checking mechanisms throughout the system architecture with particular emphasis on validating access rights before granting elevated privileges. Organizations should apply the patch identified as ALPS10900493 which specifically addresses this missing permission check issue. The remediation process should include thorough testing of permission validation logic and implementation of additional security controls such as mandatory access controls and privilege separation mechanisms. Security teams should also conduct comprehensive vulnerability assessments to identify potential similar weaknesses in other system components, as this type of permission bypass vulnerability often indicates broader architectural security gaps that require systematic review and strengthening.
This vulnerability aligns with CWE-284 which describes inadequate access control mechanisms and represents a classic example of improper privilege management within operating systems. From an attack perspective, it maps to ATT&CK technique T1068 which covers privilege escalation through local system exploitation, and potentially T1548 which addresses abuse of system permissions for privilege escalation. The absence of user interaction requirements places this vulnerability in a particularly dangerous category as it can be exploited automatically by malware or automated attack tools once the initial compromise has been achieved, making it a critical target for immediate remediation efforts.