IDrive for Windows Vulnerability Allows Attackers to Escalate Privileges and Gain ...

A critical security flaw has been identified in the IDrive Cloud Backup Client for Windows, exposing users to local privilege escalation attacks.

Tracked as CVE-2026-1995, this vulnerability allows authenticated, low-privilege attackers to execute arbitrary code with the highest system permissions, potentially leading to a complete compromise of the targeted device.

IDrive is a widely used cloud backup service that allows organizations and individuals to encrypt, synchronize, and store data across multiple platforms.

According to KB Cert , the vulnerability specifically impacts the Windows client for both desktop and server editions, which functions as a management interface for cloud backups.

The vulnerability affects IDrive client versions 7.0.0.63 and earlier. The core security failure resides in the id_service.exe utility, a background process that operates with elevated NT AUTHORITY\SYSTEM privileges.

This service routinely reads specific files stored within the C:\ProgramData\IDrive directory and uses their UTF16-LE encoded contents as arguments to launch new processes.

Due to weak permission configurations on this specific folder, any standard user logged into the system is granted write access.

An authenticated attacker can exploit this misconfiguration by overwriting existing files or adding new ones into the directory.

Because the IDrive service operates with SYSTEM privileges , the injected malicious code inherits those exact administrative rights upon execution.

Successful exploitation of this flaw grants an attacker complete control over the targeted Windows machine.

Once elevated access is achieved, attackers can execute a wide range of malicious activities.

This includes stealing sensitive encrypted backup data, modifying critical system configurations, disabling antivirus software, or deploying persistent malware and ransomware across the environment.

Currently, there is no official patch available for CVE-2026-1995, though IDrive has confirmed that a security update is actively in development.

Organizations utilizing the IDrive Windows client are urged to monitor vendor release channels and apply the software update immediately upon availability.

Until a patch is deployed, security teams should implement manual workarounds to secure their environments.

Administrators are strongly advised to restrict write permissions on the C:\ProgramData\IDrive directory, ensuring that only highly privileged administrator accounts can modify the folder’s contents.

Furthermore, organizations should leverage Endpoint Detection and Response (EDR) solutions to monitor for unauthorized file modifications and deploy Group Policies to actively prevent the execution of untrusted scripts.

Divya is a Senior Journalist at GBhackers covering Cyber Attacks, Threats, Breaches, Vulnerabilities and other happenings in the cyber world.

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