VulnSocial

CVE-2018-7794Disclosure(schneider-electric / 140cpu65150)

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Modicon M580, Modicon M340, Modicon Quantum, Modicon Premium (see security notification for specific versions) which could cause a Denial of Service when reading data with invalid index using Modbus TCP.

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0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-754

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • 140cpu65150
  • 140cpu65150_firmware
  • 140cpu65160
  • 140cpu65160_firmware

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
schneider-electric
Products
140cpu65150140cpu65150_firmware140cpu65160140cpu65160_firmware140cpu65160s140cpu65160s_firmware140cpu65260140cpu65260_firmware140cpu65860140cpu65860_firmware

1 version affected across 58 products

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-06-02: 1Technical Details · 2026-06-02: 106-02
Signal classification1 categories
Disclosure
1100.0%
Full discourse1 post
  • DFIR Lab@DFIR_Lab
    Disclosure

    🚨 HIGH SEVERITY: CVE-2018-7794 (CVSS 7.5) Schneider Electric Modicon PLCs vulnerable to DoS via Modbus TCP with invalid index reads. Affects M580, M340, Quantum, Premium series. Impact: Network-accessible denial of service #CVE #Vulnerability #PatchNow #ICS https://t.co/Um5aQAECEf

    Post summary

    The tweet announces CVE‑2018‑7794, a denial‑of‑service vulnerability in Schneider Electric Modicon PLCs triggered by invalid Modbus TCP index reads, but does not provide PoC, exploit, or patch information.

    0000062
    35 followersView on X
CPE platform detail58 entries

58 of 58 entries

PartVendorProductVersionTarget SWTarget HW
HWschneider-electric140cpu65150---
OSschneider-electric140cpu65150_firmware---
HWschneider-electric140cpu65160---
OSschneider-electric140cpu65160_firmware---
HWschneider-electric140cpu65160s---
OSschneider-electric140cpu65160s_firmware---
HWschneider-electric140cpu65260---
OSschneider-electric140cpu65260_firmware---
HWschneider-electric140cpu65860---
OSschneider-electric140cpu65860_firmware---
HWschneider-electric140cpu67060---
OSschneider-electric140cpu67060_firmware---
HWschneider-electric140cpu67160---
OSschneider-electric140cpu67160_firmware---
HWschneider-electric140cpu67160s---
OSschneider-electric140cpu67160s_firmware---
HWschneider-electric140cpu67260---
OSschneider-electric140cpu67260_firmware---
HWschneider-electric140cpu67261---
OSschneider-electric140cpu67261_firmware---
HWschneider-electric140cpu67861---
OSschneider-electric140cpu67861_firmware---
HWschneider-electricmodicon_m340---
OSschneider-electricmodicon_m340_firmware---
HWschneider-electricmodicon_m580---
OSschneider-electricmodicon_m580_firmware---
HWschneider-electrictsxh5724m---
OSschneider-electrictsxh5724m_firmware---
HWschneider-electrictsxh5744m---
OSschneider-electrictsxh5744m_firmware---
HWschneider-electrictsxp57104m---
OSschneider-electrictsxp57104m_firmware---
HWschneider-electrictsxp57154m---
OSschneider-electrictsxp57154m_firmware---
HWschneider-electrictsxp571634m---
OSschneider-electrictsxp571634m_firmware---
HWschneider-electrictsxp57204m_---
OSschneider-electrictsxp57204m_firmware---
HWschneider-electrictsxp57254m---
OSschneider-electrictsxp57254m_firmware---
HWschneider-electrictsxp572634m---
OSschneider-electrictsxp572634m_firmware---
HWschneider-electrictsxp57304m---
OSschneider-electrictsxp57304m_firmware---
HWschneider-electrictsxp57354m---
OSschneider-electrictsxp57354m_firmware---
HWschneider-electrictsxp573634m---
OSschneider-electrictsxp573634m_firmware---
HWschneider-electrictsxp57454m---
OSschneider-electrictsxp57454m_firmware---
HWschneider-electrictsxp574634m---
OSschneider-electrictsxp574634m_firmware---
HWschneider-electrictsxp57554m---
OSschneider-electrictsxp57554m_firmware---
HWschneider-electrictsxp575634m---
OSschneider-electrictsxp575634m_firmware---
HWschneider-electrictsxp576634m---
OSschneider-electrictsxp576634m_firmware---

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