What is the CVSS score of CVE-2026-26034?

CVE-2026-26034 has a CVSS 3.0 base score of 7.8 (High). CVSS vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

How to fix or mitigate CVE-2026-26034?

Within 24 hours: Inventory all UPS Management Console deployments and document current versions. Within 7 days: Implement network segmentation to restrict console access to authorized administrators only, enforce strong authentication (disable default credentials), and audit access logs for suspicious activity. Within 30 days: Contact UPS for patch availability timeline and develop upgrade plan; if patch becomes available, prioritize deployment to production environments.

Ups Multi Ups Management Console CVE-2026-26034

HIGH

Incorrect Default Permissions (CWE-276)

2026-03-05 vultures@jpcert.or.jp

Privilege Escalation RCE Dell Ups Multi Ups Management Console

7.8

CVSS 3.0 · NVD

View

Attack ChainAIDerived

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

Access

Craft malicious DLL file
Delivery

Place DLL in application directory
Exploit

User launches MUMC application
Execution

Application loads crafted DLL
Impact

Execute arbitrary code as SYSTEM

Vulnerability Assessment

Weakness	CWE CWE-276 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V13 - Configuration Default permission hardening MITRE ATT&CK 1 technique across 1 tactic: Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Exploitation Conditions	UPS Multi-UPS Management Console (MUMC) version 01.06.0001 (A03) with insecure default DLL search path permissions allowing local attacker to write to application directory; requires user interaction to launch the application.
Impact	CVSS 7.8 (HIGH). Attack vector: Local. Complexity: Low. Privileges required: None. User interaction: Required.
Exploit ScenarioDerived	An attacker could exploit this vulnerability to execute arbitrary code with SYSTEM privileges by causing the application to load.

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

No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Ups Multi-Ups Management Console versions up to 01.06.0001_\(a03\) is affected by incorrect default permissions (CVSS 7.8).

RemediationAI

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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

This vulnerability (CWE-276: Incorrect Default Permissions) affects Ups Multi-Ups Management Console. UPS Multi-UPS Management Console (MUMC) version 01.06.0001 (A03) contains an Incorrect Default Permissions (CWE-276) vulnerability that allows an attacker to execute arbitrary code with SYSTEM privileges by causing the application to load a specially crafted DLL.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.8 HIGH

AV:L/AC:L/PR:N/UI:R/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

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionCVE.org

UPS Multi-UPS Management Console (MUMC) version 01.06.0001 (A03) contains an Incorrect Default Permissions (CWE-276) vulnerability that allows an attacker to execute arbitrary code with SYSTEM privileges by causing the application to load a specially crafted DLL.

Executive ViewAI

Why It Matters

UPS Multi-UPS Management Console versions through 01.06.0001(a03) contain a critical default permissions vulnerability that could allow unauthorized users to access or modify critical power management infrastructure. Organizations running affected versions face operational disruption risk and potential loss of control over mission-critical UPS systems without immediate remediation.

Business Impact: High

Compensating Controls

Implement network segmentation isolating UPS Management Console to trusted administrative networks only; disable remote access where feasible; enforce strong password policies and multi-factor authentication for all console accounts; disable or remove default user accounts; monitor and log all console access attempts; restrict console functionality through host-based firewall rules; conduct regular access audits.

Threat Intelligence Overview

EPSS Score

0.0%

Top 96% 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.

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.