Full Report
The GIGABYTE Control Center is vulnerable to an arbitrary file-write flaw that could allow a remote, unauthenticated attacker to access files on vulnerable hosts. [...]
Analysis Summary
# Vulnerability: GIGABYTE Control Center Arbitrary File Write
## CVE Details
- **CVE ID:** CVE-2026-4415
- **CVSS Score:** 9.2 (Critical) [CVSS v4.0]
- **CWE:** Not specified (categorized as Arbitrary File Write)
## Affected Systems
- **Products:** GIGABYTE Control Center (GCC)
- **Versions:** 25.07.21.01 and earlier
- **Configurations:** Systems where the "Pairing" feature is enabled.
## Vulnerability Description
CVE-2026-4415 is an arbitrary file-write vulnerability residing in the "pairing" feature of the GIGABYTE Control Center. The flaw stems from improper validation and management of download paths, message processing, and a lack of command encryption. An unauthenticated remote attacker can leverage this feature to write arbitrary files to any location on the underlying Windows operating system.
## Exploitation
- **Status:** Vulnerability discovered by researcher David Sprüngli (SilentGrid); no mentions of active exploitation in the wild in the provided text.
- **Complexity:** Low (Indicated by high CVSS score and unauthenticated remote access).
- **Attack Vector:** Network (Remote)
## Impact
- **Confidentiality:** High (Potential for unauthorized file access and data theft).
- **Integrity:** High (Ability to overwrite system files or plant malicious executables, leading to Arbitrary Code Execution (ACE) and Privilege Escalation).
- **Availability:** High (Potential for Denial-of-Service (DoS) by overwriting critical system components).
## Remediation
### Patches
- **GIGABYTE Control Center version 25.12.10.01** or later. This version introduces fixes for download path management, message processing, and command encryption.
### Workarounds
- **Disable Pairing:** Disable the "pairing" feature within the GCC utility if updates cannot be applied immediately.
- **Network Filtering:** Restrict access to the ports used by GCC for pairing to trusted internal devices only.
## Detection
- **Indicators of Compromise:** Monitor for unexpected file creation or modification in sensitive directories (e.g., `C:\Windows\System32`, `Startup` folders) originating from the GCC process.
- **Detection methods and tools:** Audit network traffic for unencrypted or suspicious command patterns targeting the GCC pairing service. Check GCC versioning via software inventory tools.
## References
- **Vendor Advisory:** hxxp://www[.]gigabyte[.]com/tw/Support/Security/2377
- **TWCERT/CC Advisory:** hxxps://www[.]twcert[.]org[.]tw/en/cp-139-10804-689cd-2[.]html
- **CVE Record:** hxxps://www[.]cve[.]org/CVERecord?id=CVE-2026-4415
- **Official Software Portal:** hxxps://www[.]gigabyte[.]com/consumer/software/gigabyte-control-center/global