CVE-2026-14193Network attack vector

Unauthenticated PLC halt via invalid array index

Published Jul 1, 2026 · Updated Jul 1, 2026

Improper array-index validation in Delta Electronics DVP80ES300T firmware 1.08 and earlier allows remote attackers to halt the PLC. Delta's advisory identifies the weakness class but does not disclose the affected firmware routine, network protocol, crafted field, or exact invalid-index operation. No authentication or user interaction is required, and successful exploitation interrupts controller operation without reported data disclosure or modification.

CVSS severity7.5
High
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper array-index validation in Delta Electronics DVP80ES300T firmware 1.08 and earlier allows remote attackers to halt the PLC. Delta's advisory identifies the weakness class but does not disclose the affected firmware routine, network protocol, crafted field, or exact invalid-index operation. No authentication or user interaction is required, and successful exploitation interrupts controller operation without reported data disclosure or modification.

The record

CVE
CVE-2026-14193
Published
Jul 1, 2026
Updated
Jul 1, 2026
Vendor
Delta Electronics, Inc.
Product
DVP80ES300T
Classifications
CWE-129, CAPEC-100, T0814
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 1, 2026Record 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 <=1.08

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Delta Electronics, Inc. · DVP80ES300Tversion=0 <=1.08

Published CVSS scores

7.5Delta Electronics CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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-129Improper Validation of Array Index
CAPEC-100Overflow Buffers
T0814Denial of Service

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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