CVE-2025-52551Network attack vector

Unauthenticated arbitrary file access via proprietary protocol

Published Sep 2, 2025 · Updated Sep 2, 2025

Missing authentication in Copeland E2 Facility Management System 4.11F02 and earlier allows remote attackers to access arbitrary files. The proprietary E2 network protocol accepts file-operation requests for any filesystem path without verifying the requester's identity. Network reachability to the controller interface is sufficient to access or alter system files and disrupt controller operation.

CVSS severity9.3
Critical
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Copeland E2 Facility Management System 4.11F02 and earlier allows remote attackers to access arbitrary files. The proprietary E2 network protocol accepts file-operation requests for any filesystem path without verifying the requester's identity. Network reachability to the controller interface is sufficient to access or alter system files and disrupt controller operation.

The record

CVE
CVE-2025-52551
Published
Sep 2, 2025
Updated
Sep 2, 2025
Vendor
Copeland LP
Product
E2 Facility Management System
Classifications
CWE-306, CAPEC-165, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 2, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 2, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=<=4.11F02

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Copeland LP · E2 Facility Management Systemversion=0 <=<=4.11F02

Published CVSS scores

9.3ArmisCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:L/SA:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
CAPEC-165File Manipulation
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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