CVE-2026-56979 in Android
Summary
by MITRE • 09/15/2026
In multiple locations, there is a possible permission bypass due to a logic error in the code. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
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Analysis
by VulDB Data Team • 09/15/2026
The vulnerability described represents a critical security flaw characterized by a logical error within the application or operating system's access control mechanisms, resulting in an unauthorized permission bypass. Unlike vulnerabilities that stem from memory corruption issues such as buffer overflows or use-after-free conditions, this defect arises from flawed decision-making logic during the execution of privileged operations. The core issue lies in the failure to properly validate user privileges before granting access to sensitive resources or executing high-level system commands. This type of flaw is often categorized under CWE-269 Improper Privilege Management or CWE-862 Missing Authorization, indicating that the software does not enforce appropriate restrictions on authenticated users regarding their ability to perform actions or access data. The presence of this logic error allows an attacker who has already gained a foothold in the system, even at a low privilege level such as a standard user account, to manipulate the application's flow and escalate privileges significantly higher than intended by the security architecture.
The operational impact of this vulnerability is severe due to its potential for local escalation of privilege with System execution capabilities. In most computing environments, particularly within Windows-based systems where system-level access grants control over the entire operating environment, achieving such a level of elevation effectively compromises the integrity and confidentiality of the host. An attacker exploiting this flaw can execute arbitrary code with the highest possible privileges, allowing them to install programs, view, change, or delete any files on the compromised machine, and create new accounts with full administrative rights. This capability transforms a minor security breach into a complete system compromise, enabling further lateral movement within a network if the affected device is connected to one. The severity is compounded by the fact that user interaction is not required for exploitation, meaning the vulnerability can be triggered automatically through background processes or scheduled tasks without any direct engagement from the end-user, thereby increasing the likelihood of successful automated attacks and reducing the window for detection before damage occurs.
From a tactical perspective, this vulnerability aligns with several techniques in the MITRE ATT&CK framework, specifically those related to privilege escalation and defense evasion. The exploitation path likely involves techniques such as T1068 Exploitation for Privilege Escalation or potentially T1548 Abuse Elevation Control Mechanism if the logic error relates to bypassing User Account Control mechanisms. Attackers would typically leverage this flaw after initial access is established, using it to gain persistent control over critical system components. The lack of required user interaction suggests that once an attacker gains any level of code execution on the target machine, they can immediately attempt to trigger the privilege escalation routine without alerting users through suspicious prompts or interactions, making detection more challenging for endpoint protection solutions that rely on behavioral anomalies associated with user activity.
Mitigation strategies must focus on both immediate remediation and long-term architectural improvements. The primary defense is the application of vendor-provided patches or updates that correct the underlying logic error in the access control checks. Organizations should prioritize deploying these fixes across all affected systems, especially those exposed to untrusted networks or used by multiple users with varying privilege levels. In addition to patching, implementing strict least-privilege principles can limit the blast radius if such a vulnerability is exploited; ensuring that standard user accounts do not have unnecessary permissions reduces the attack surface for escalation attempts. Furthermore, deploying advanced endpoint detection and response solutions capable of monitoring for unusual process creation patterns associated with privilege escalation attacks can provide an additional layer of defense. Regular auditing of system logs for signs of unauthorized administrative actions or unexpected changes to security descriptors is also recommended to detect potential exploitation activities post-deployment.