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Vulnerability Assessment

Weakness
CWE
CWE-22
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling Path canonicalization, traversal prevention
MITRE ATT&CK

2 techniques across 2 tactics: Discovery, Collection

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Impact

CVSS score of 10.0 (CRITICAL). Attack characteristics: network attack vector, low complexity. Public proof-of-concept exploit code is available. EPSS exploitation probability: 0.77%.
Exploit ScenarioDerived

A remote attacker could access files and directories outside the intended path by sending crafted requests to the affected application.
Act Now Prioritize within 24-48h. Why: CRITICAL severity + public POC available.
No patch listed yet 0.8% exploitation probability (EPSS)

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AnalysisAI

Directory traversal vulnerability in the FTP server on Honeywell Excel Web XL1000C50 52 I/O, XL1000C100 104 I/O, XL1000C500 300 I/O, XL1000C1000 600 I/O, XL1000C50U 52 I/O UUKL, XL1000C100U 104 I/O. Rated critical severity (CVSS 10.0), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate and canonicalize file paths. Use chroot or sandboxing. Reject input containing path separators or '../' sequences.

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Technical ContextAI · show details

This vulnerability is classified as Path Traversal (CWE-22), which allows attackers to access files and directories outside the intended path. Directory traversal vulnerability in the FTP server on Honeywell Excel Web XL1000C50 52 I/O, XL1000C100 104 I/O, XL1000C500 300 I/O, XL1000C1000 600 I/O, XL1000C50U 52 I/O UUKL, XL1000C100U 104 I/O UUKL, XL1000C500U 300 I/O UUKL, and XL1000C1000U 600 I/O UUKL controllers before 2.04.01 allows remote attackers to read files under the web root, and consequently obtain administrative login access, via a crafted pathname. Affected products include: Honeywell Excel Web Xl 1000C100 104 I\/O, Honeywell Excel Web Xl 1000C1000 600 I\/O, Honeywell Excel Web Xl 1000C1000 600 I\/O Uukl, Honeywell Excel Web Xl 1000C100U 104 I\/O Uukl, Honeywell Excel Web Xl 1000C50 52 I\/O. Version information: before 2.04.01.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 10.0 CRITICAL
AV:N/AC:L/Au:N/C:C/I:C/A:C

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Confidentiality
C
Integrity
C
Availability
C

DescriptionCVE.org

Directory traversal vulnerability in the FTP server on Honeywell Excel Web XL1000C50 52 I/O, XL1000C100 104 I/O, XL1000C500 300 I/O, XL1000C1000 600 I/O, XL1000C50U 52 I/O UUKL, XL1000C100U 104 I/O UUKL, XL1000C500U 300 I/O UUKL, and XL1000C1000U 600 I/O UUKL controllers before 2.04.01 allows remote attackers to read files under the web root, and consequently obtain administrative login access, via a crafted pathname.

Threat Intelligence Overview

EPSS Score
0.8%
Top 26% exploitable
Exploit
POC
Public exploit code exists
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 CRITICAL
CISA KEV No
Public POC Yes
EPSS 0.8%
Patch available No
Active threat No
Deciding rule
CRITICAL severity + public POC available
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
Poc
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

71
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +50
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Path Traversal HIGH

Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.

Affected Products (CPE)CVE.org

cpe:2.3:o:honeywell:excel_web_xl_1000c100_104_i\/o:*:*:*:*:*:*:*:*
cpe:2.3:o:honeywell:excel_web_xl_1000c1000_600_i\/o:*:*:*:*:*:*:*:*
cpe:2.3:o:honeywell:excel_web_xl_1000c1000_600_i\/o_uukl:*:*:*:*:*:*:*:*
cpe:2.3:o:honeywell:excel_web_xl_1000c100u_104_i\/o_uukl:*:*:*:*:*:*:*:*
cpe:2.3:o:honeywell:excel_web_xl_1000c50_52_i\/o:*:*:*:*:*:*:*:*
cpe:2.3:o:honeywell:excel_web_xl_1000c500_300_i\/o:*:*:*:*:*:*:*:*
cpe:2.3:o:honeywell:excel_web_xl_1000c500_300_i\/o_uukl:*:*:*:*:*:*:*:*
cpe:2.3:o:honeywell:excel_web_xl_1000c50u_52_i\/o_uukl:*:*:*:*:*:*:*:*

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Same weakness CWE-22 – Path Traversal

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CVE-2019-3396 CRITICAL POC
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CVE-2020-5902 CRITICAL POC
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9.8
CVE-2021-40444 HIGH POC
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CVE-2019-11510 CRITICAL POC
10.0

Same technique Path Traversal

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CVE-2018-20250 HIGH POC
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CVE-2025-64446 CRITICAL POC
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References

Advisories & patches
REF http://seclists.org/fulldisclosure/2015/Apr/79 REF https://ics-cert.us-cert.gov/advisories/ICSA-15-076-02

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