CVE-2026-4416

High

Published: 30 March 2026

Published

30 March 2026

Modified

08 April 2026

KEV Added

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Patch

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CVSS Score 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0002 6.2th percentile

Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-4416 is a high-severity Deserialization of Untrusted Data (CWE-502) vulnerability in Gigabyte Performance Library. Its CVSS base score is 7.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 6.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploitation for Privilege Escalation (T1068). What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SI-2 Flaw Remediation good match

prevent

SI-2 requires timely identification, reporting, and correction of flaws like this insecure deserialization vulnerability through patching.

SI-10 Information Input Validation good match

prevent

SI-10 mandates validation of information inputs, directly preventing malicious serialized payloads from being deserialized by the EasyTune Engine service.

AC-6 Least Privilege partial match

prevent

AC-6 enforces least privilege on the service process, limiting the impact of privilege escalation resulting from successful deserialization.

MITRE ATT&CK Enterprise TechniquesAI

T1068 Exploitation for Privilege Escalation Privilege Escalation

Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.

attack.mitre.org →

Why these techniques?

Insecure deserialization in local EasyTune Engine service directly enables local authenticated attackers to achieve arbitrary code execution and privilege escalation (CVSS AV:L vector).

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

NVD 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.

Deeper analysisAI

CVE-2026-4416 is an Insecure Deserialization vulnerability (CWE-502) affecting the Performance Library component of Gigabyte Control Center. Published on 2026-03-30T08:16:18.360, it carries a CVSS v3.1 base score of 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), indicating high impact potential from local access.

Authenticated local attackers can exploit the vulnerability by sending a malicious serialized payload to the EasyTune Engine service, resulting in privilege escalation. The low attack complexity and required low privileges, combined with no need for user interaction, make it accessible to compromised user accounts on the system.

Advisories from TWCERT provide further details on mitigation, available at https://www.twcert.org.tw/en/cp-139-10806-fbc4a-2.html and https://www.twcert.org.tw/tw/cp-132-10805-a53f6-1.html.