What is the CVSS score of CVE-2022-33859?

CVE-2022-33859 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.3%.

Foreseer Electrical Power Monitoring System CVE-2022-33859

CRITICAL

Unrestricted Upload of File with Dangerous Type (CWE-434)

2022-10-28 CybersecurityCOE@eaton.com

File Upload Foreseer Electrical Power Monitoring System Eaton

9.8

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-434 OWASP Top 10:2025 A06:2025 - Insecure Design ASVS 5.0 V5 - File Handling File type validation, storage isolation MITRE ATT&CK 2 techniques across 2 tactics: Command and Control, Persistence The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.
Exploit ScenarioDerived	A remote attacker could upload malicious files that can be executed on the server by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.

No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAI

A security vulnerability was discovered in the Eaton Foreseer EPMS software. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate file types server-side, store uploads outside webroot, use random filenames, scan for malware.

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 is classified as Unrestricted File Upload (CWE-434), which allows attackers to upload malicious files that can be executed on the server. A security vulnerability was discovered in the Eaton Foreseer EPMS software. Foreseer EPMS connects an operation’s vast array of devices to assist in the reduction of energy consumption and avoid unplanned downtime caused by the failures of critical systems. A threat actor may upload arbitrary files using the file upload feature. This vulnerability is present in versions 4.x, 5.x, 6.x & 7.0 to 7.5. A new version (v7.6) containing the remediation has been made available by Eaton and a mitigation has been provided for the affected versions that are currently supported. Customers are advised to update the software to the latest version (v7.6). Foreseer EPMS versions 4.x, 5.x, 6.x are no longer supported by Eaton. Please refer to the End-of-Support notification https://www.eaton.com/in/en-us/catalog/services/foreseer/foreseer-legacy.html . Affected products include: Eaton Foreseer Electrical Power Monitoring System.

Severity by source

NVD PRIMARY 9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionNVD

A security vulnerability was discovered in the Eaton Foreseer EPMS software. Foreseer EPMS connects an operation’s vast array of devices to assist in the reduction of energy consumption and avoid unplanned downtime caused by the failures of critical systems. A threat actor may upload arbitrary files using the file upload feature.

This vulnerability is present in versions 4.x, 5.x, 6.x & 7.0 to 7.5. A new version (v7.6) containing the remediation has been made available by Eaton and a mitigation has been provided for the affected versions that are currently supported.

Customers are advised to update the software to the latest version (v7.6).

Foreseer EPMS versions 4.x, 5.x, 6.x are no longer supported by Eaton. Please refer to the End-of-Support notification https://www.eaton.com/in/en-us/catalog/services/foreseer/foreseer-legacy.html .

Threat Intelligence Overview

EPSS Score

0.3%

Top 73% exploitable

Data Quality

2 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 CRITICAL

CISA KEV No

Public POC No

EPSS 0.3%

Patch available No

Active threat No

Deciding rule

CRITICAL severity

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.