What is the CVSS score of CVE-2026-0870?

CVE-2026-0870 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

How to fix or mitigate CVE-2026-0870?

Within 24 hours: Identify all systems running MacroHub and restrict local administrative access to trusted users only; audit recent user activities on affected systems. Within 7 days: Disable MacroHub if not operationally critical, or isolate affected systems from sensitive networks; communicate findings to asset owners and affected departments. Within 30 days: Monitor GIGABYTE security advisories for patch availability; develop a patch deployment plan; implement application whitelisting to restrict MacroHub's ability to launch external processes.

CVE-2026-0870

HIGH

Execution with Unnecessary Privileges (CWE-250)

2026-02-09 twcert@cert.org.tw

Privilege Escalation

7.8

CVSS 3.1 · NVD

View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

Access

Authenticate as local user
Delivery

Craft malicious application
Exploit

Place in MacroHub launch path
Execution

MacroHub executes application with SYSTEM privileges
Impact

Arbitrary code execution as SYSTEM

Vulnerability Assessment

Weakness	CWE CWE-250 OWASP Top 10:2025 A06:2021 - Vulnerable and Outdated Components ASVS 5.0 V8 - Authorization Unnecessary privilege execution
Exploitation Conditions	MacroHub installed on Windows system with improper privilege handling. Requires local user account access. Attacker must be able to place malicious executable in MacroHub's application launch directory or intercept legitimate application paths.
Impact	CVSS 7.8 (HIGH). Attack vector: Local. Complexity: Low. Privileges required: Low. User interaction: None. Exploitation requires authentication. Exploitable via local access.
Exploit ScenarioDerived	An attacker (requires authentication) could exploit this vulnerability to compromise the affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 0.0% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Mar 12, 2026

GIGABYTE MacroHub improperly executes external applications with elevated privileges, enabling authenticated local users to achieve arbitrary code execution with SYSTEM-level access. This local privilege escalation affects MacroHub users on Windows systems and could allow attackers to fully compromise affected machines. No patch is currently available.

Earlier versions of this analysis (1)

v1 Mar 12, 2026 - 21:54 CVSS 7.8

MacroHub developed by GIGABYTE has a Local Privilege Escalation vulnerability. Due to the MacroHub application launching external applications with improper privileges, allowing authenticated local attackers to execute arbitrary code with SYSTEM privileges. [CVSS 7.8 HIGH]

RemediationAI

Monitor vendor advisories for a patch.

Affected ProductsAI

MacroHub developed by GIGABYTE has a Local Privilege Escalation vulnerability

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Classified as CWE-250 (Execution with Unnecessary Privileges). MacroHub developed by GIGABYTE has a Local Privilege Escalation vulnerability. Due to the MacroHub application launching external applications with improper privileges, allowing authenticated local attackers to execute arbitrary code with SYSTEM privileges.

Know when the next one hits your stack

Watch products and get an email when something new is published
Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 7.8 HIGH

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionCVE.org

Executive ViewAI

Why It Matters

GIGABYTE MacroHub contains a privilege escalation vulnerability that allows authenticated local users to gain SYSTEM-level access and execute arbitrary code on affected systems. This poses a significant risk to organizations using GIGABYTE systems, particularly in manufacturing, gaming, and enterprise environments where MacroHub may be deployed across multiple endpoints.

Business Impact: High

Compensating Controls

Disable MacroHub if not operationally essential; implement application whitelisting to restrict executable launches by MacroHub; enforce strict local access controls and privileged access management (PAM) to limit authenticated local user accounts; isolate affected systems from critical network segments and sensitive data; enable enhanced logging and monitoring of MacroHub process execution; consider network segmentation to prevent lateral movement if compromise occurs.

Threat Intelligence Overview

EPSS Score

0.0%

Top 98% exploitable

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 0.0%

Patch available No

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Small

Automatable· derived

Human Impact

High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +39

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Privilege Escalation HIGH

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.