Gigabyte Control Center flaw can allow remote file writes when pairing is enabled (CVE-2026-4415)

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What happened

TWCERT/CC published CVE-2026-4415 for Gigabyte Control Center (GCC), reporting an arbitrary file write vulnerability affecting version 25.07.21.01 and earlier.

The issue is tied to GCC’s pairing feature. If pairing is enabled, an unauthenticated attacker on the reachable network may be able to write files to arbitrary locations on the Windows host. TWCERT/CC and NVD both describe potential outcomes including remote code execution or privilege escalation.

Why this matters

Gigabyte Control Center is commonly used on consumer and enthusiast systems. A remote write primitive can be enough to drop or overwrite files that later execute with elevated privileges.

Even if exploitation conditions are specific, this is the kind of bug that can become high impact quickly in flat home/lab networks where many devices can talk to each other by default.

How to check if you’re affected

You may be affected if:

You use a Gigabyte motherboard/laptop with Gigabyte Control Center installed.
Your installed GCC version is 25.07.21.01 or older.
The pairing feature is enabled.

Quick verification steps:

Open Gigabyte Control Center and check the installed version.
If version is 25.07.21.01 or older, update immediately to 25.12.10.01 or later.
Disable pairing if you do not actively need it.
Restrict untrusted local-network access to the affected machine until patched.
Monitor for unexpected new/modified files in startup paths and scheduled tasks.

Immediate defensive actions

Patch GCC to the latest version available from official Gigabyte channels.
Keep Windows Defender/EDR enabled and up to date on affected hosts.
Segment high-value systems from untrusted LAN/Wi-Fi segments.
For managed fleets, run an inventory query for old GCC versions and push remediation.

Sources

Bottom line

If you run Gigabyte Control Center, treat this as a patch-now item: update, disable pairing unless required, and tighten local network exposure while rolling fixes out.