CVE-2026-4415: Gigabyte Control Center RCE Vulnerability

CVE-2026-4415 Overview

Gigabyte Control Center developed by GIGABYTE contains a critical Arbitrary File Write vulnerability (CWE-23: Relative Path Traversal). When the pairing feature is enabled, unauthenticated remote attackers can write arbitrary files to any location on the underlying operating system. This vulnerability can lead to arbitrary code execution or privilege escalation, making it a severe threat to systems running the vulnerable software.

Critical Impact

Unauthenticated remote attackers can achieve arbitrary code execution or privilege escalation by exploiting the file write vulnerability when the pairing feature is enabled.

Affected Products

• Gigabyte Control Center (versions with pairing feature enabled)

Discovery Timeline

• 2026-03-30 - CVE CVE-2026-4415 published to NVD
• 2026-03-30 - Last updated in NVD database

Technical Details for CVE-2026-4415

Vulnerability Analysis

This vulnerability stems from improper input validation in the Gigabyte Control Center's pairing feature. The application fails to properly sanitize file paths provided by remote users, allowing path traversal sequences to be used when writing files to the system. Since the vulnerability can be exploited by unauthenticated remote attackers over the network, it represents a significant security risk for any system with the pairing feature enabled.

The vulnerability is classified as CWE-23 (Relative Path Traversal), indicating that the application accepts user-controlled input containing path traversal sequences without proper validation, allowing attackers to escape the intended directory structure and write files to arbitrary locations on the file system.

Root Cause

The root cause of CVE-2026-4415 lies in the pairing functionality of Gigabyte Control Center, which does not enforce authentication for incoming connections. Combined with insufficient input validation on file path parameters, this allows remote attackers to construct malicious requests containing relative path traversal sequences (such as ../) to write files outside of the intended directory. The lack of authentication means any network-accessible attacker can exploit this flaw without credentials.

Attack Vector

The attack vector for this vulnerability is network-based. An attacker can exploit this vulnerability remotely when the pairing feature is enabled on the target system. The attack does not require any user interaction or prior authentication. The exploitation process involves:

1. Identifying a target system running Gigabyte Control Center with the pairing feature enabled
2. Crafting a malicious request containing path traversal sequences in file path parameters
3. Sending the request to the vulnerable service to write a malicious file to an arbitrary location
4. Leveraging the written file for code execution or privilege escalation

The vulnerability allows attackers to write arbitrary content to any writable location on the file system, which can be leveraged to overwrite system files, drop malicious executables, or modify configuration files to achieve persistent access.

Detection Methods for CVE-2026-4415

Indicators of Compromise

• Unexpected files appearing in system directories or startup locations
• Suspicious network connections to Gigabyte Control Center service ports
• Unusual file write activity in system-critical directories originating from Gigabyte Control Center processes
• Log entries showing file operations with path traversal sequences (../)

Detection Strategies

• Monitor network traffic to Gigabyte Control Center for anomalous pairing requests from unauthorized sources
• Implement file integrity monitoring on critical system directories to detect unauthorized file writes
• Deploy endpoint detection rules that alert on path traversal patterns in file operation parameters
• Review application logs for failed or successful file write operations to unexpected locations

Monitoring Recommendations

• Enable detailed logging for Gigabyte Control Center if available to capture file operation details
• Configure SIEM rules to correlate network connections to Gigabyte Control Center with subsequent file system modifications
• Implement real-time alerts for any file writes to sensitive directories such as C:\Windows\System32 or startup folders
• Monitor process creation events for executables written by Gigabyte Control Center to non-standard locations

How to Mitigate CVE-2026-4415

Immediate Actions Required

• Disable the pairing feature in Gigabyte Control Center until a patch is available
• Restrict network access to Gigabyte Control Center using firewall rules to limit exposure
• Implement network segmentation to isolate systems running the vulnerable software
• Monitor affected systems for signs of exploitation using the detection methods outlined above

Patch Information

For detailed patch and remediation information, refer to the official security advisories from TWCert:

• TWCert Security Advisory (English)
• TWCert Security Update (Chinese)

Organizations should monitor these advisories for updates from GIGABYTE regarding official patches and apply them immediately when available.

Workarounds

• Disable the pairing feature entirely if it is not required for operational purposes
• Use host-based firewalls to block incoming connections to Gigabyte Control Center from untrusted networks
• Implement application whitelisting to prevent execution of unauthorized files written to the system
• Consider temporarily uninstalling Gigabyte Control Center on critical systems until a patch is released
• Deploy network-level access controls to restrict which hosts can communicate with systems running the vulnerable software